ال A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE To the solid ground No. 1860, VOL. 72] Of Nature trusts the mind which builds for aye."-WORDSWORTH. THURSDAY, JUNE 22, 1905 Registered as a Newspaper at the General Post Office.] Newton's New Demonstrator's "Transpaque" Lantern Has all the advantages of our well-known Demonstrator's" Lanterns, and in addition will show brilliantly on the screen, opaque objects or book Illustrations, if not larger than a large postcard. [PRICE 15 CENTS [All Rights are Reserved. REYNOLDS & BRANSON, LO: LABORATORY OUTFITTERS and SCIENTIFIC INSTRUMENT MAKERS. NEWTON & CO., 3 FLEET STREET, LONDON. PHOTOGRAPHIC LENSES. A SIMPLE TREATISE. By CONRAD BECK and HERBERT ANDREWS. 1-, Post Free 1/3. This somewhat difficult subject is made clear without the use of mathematics. R. & J. BECK, Ltd., 68 CORNHILL, LONDON. PRACTICAL NOTES ON TELEPHOTOGRAPHY. Free on application to R. & J. BECK, Ltd., 68 CORNHILL, LONDON. MATHEMATICS PHYSICS CHEMISTRY... BIOLOGY and BIOLOGY. Prof. G. H. BRYAN, SC.D., F.R.S. Assistant Lecturers and Demonstrators, D. FARRAR, Assistant Lecturer and Demonstrator, J. Zoology and Physiology-Prof. PHILLIP J. WHITE, The Classes and Laboratory Courses of this College are arranged to suit the requirements of Students of Practical Science, as well as of Students preparing for University and other Examinations. The Lectures in Chem. istry, Physics, Botany, and Zoology are recognised for the first year of medical study. The extensive Laboratories (Physical, Chemical, and Biological) are fully equipped for Study and Research. Inclusive Tuition Fee, £11 15. Laboratory Fees (per Term) on the scale of £1 15. for six hours a week, in each Department. A considerable number of Scholarships and Exhibitions are open for com. petition at the beginning of each Session, and several are awarded at the close of each Session on the result of the year's work. For full information as to Courses, apply for Prospectus to the Secretary and Registrar, J. E. LLOYD, M.A. INSTITUTE OF CHEMISTRY OF GREAT BRITAIN AND IRELAND. INCORPORATED BY ROYAL CHARTER. An EXAMINATION IN BIOLOGICAL CHEMISTRY will be held at the Laboratories of the Institute, commencing on TUESDAY, OCTOBER 17, 1905. The Examination will be open to Fellows and Associates of the Institute, and to Candidates who are eligible for admission to the Final (A.I.C.) Examination. The Syllabus will include BIOLOGICAL CHEMISTRY, with special reference to FERMENTATION, ENZYME-ACTION, the CHEMISTRY AND BACTERIOLOGY OF FOOD-STUFFS, WATER SUPPLY and SEWAGE DISPOSAL, and the APPLICATION OF BIOLOGICAL CHEMISTRY TO INDUSTRIES AND MANUFACTURES. The List of Candidates will be closed on TUESDAY, SEPTEMBER 12, 1905. Forms of application and further particulars can be obtained on appli cation to the REGISTRAR, 30 Bloomsbury Square, London, W.C. GUY'S HOSPITAL. ENTRANCE SCHOLARSHIPS, to be competed for in September, 1905. TWO OPEN SCHOLARSHIPS in ARTS, one of the value of £100, open to Candidates under 20 years of age, and one of £50, open to Candidates under 25 years of age. TWO OPEN SCHOLARSHIPS in SCIENCE, one of the value of £150, and another of £60, open to Candidates under 25 years of age. ONE OPEN SCHOLARSHIP for University Students who have com. pleted their Study of Anatomy and Physiology, of the value of £50. Full particulars may be obtained on application to the DEAN, Guy's Hospital, London Bridge, S. E. THE VICTORIA UNIVERSITY OF MANCHESTER. PLATT BIOLOGICAL SCHOLARSHIP. One SCHOLARSHIP of the value of £50 will be offered this year. The Scholarship is open to persons who have studied Zoology or Botany in any University or College Laboratory. The Scholar will be required to devote himself to research in the Zoological and Botanical Laboratory of the University during the tenure of his Scholarship. Applications should be sent, before July 7, to the REGISTRAR, from whom further particulars may be obtained. JOHNSTON SCHOOLS, DURHAM. ASSISTANT MISTRESS required for Secondary Day School for Science, Mathematics, and some general work. Salary, 100 per annum, rising to £120 per annum. Applications, with full particulars, to be sent BIRKBECK COLLEGE BREAMS BUILDINGS, CHANCERY LANE, E.C. FACULTY OF SCIENCE. Chemistry Physics ... Mathematics Botany.. J. E. MACKENZIE, Ph.D., D.Sc H. WREN, Ph.D., B.A., B.Sc. (ALBERT GRIFFITHS. D.Sc. D. OWEN, B.A., B.Sc. B. W. CLACK, B.Sc. E. H. SMART, M.A. W. G. BIRT, B.A., B.Sc. A. B. RENDLE, M.A., D.Sc. F. E. FRITSCH, Ph.D., B.Sc. H. W. UNTHANK, B.A., B.Sc. Geology & Mineralogy GEO. F. HARRIS, F.G.S. Assaying, Metallurgy & Mining. GEO. PATCHIN, A.R.S. M RESEARCH in Chemistry and Physics in well-equipped laboratories. French, German, Spanish, Russian, Dutch, & Italian Classes. EVENING CLASSES also in Biology, Physiology, Practical Geometry, Building and Machine Construction, Steam, Theoretical and Applied Mechanics, Land and Quantity Surveying, and Estimating. Calendar 6d. (post free 8d.), on application to the SECRETARY. BACTERIOLOGY, PATHOLOGY and PUBLIC HEALTH. KING'S COLLEGE, LONDON. Hygiene and Sanitary Law-Professor SIMPSON, M.D, D. P.H. Bacteriology-Professor HEWLETT, M.D., D. P. H., and Dr. WILLSON. Chemistry and Physics-D. SOMMERVILLE, M.D., D.P.H. The Laboratories are open daily for instruction and research. Special arrangements are made to suit the convenience of those engaged in practice. Short Courses may be arranged by those who do not require to take the full Course. Vacation Course in Bacteriology and Clinical Pathology, July 26August 5. For Syllabus apply to the SECRETARY or to Prof. HEWLETT. HIGHER MATHEMATICS FOR SCIENCE AND OTHER STUDENTS. Correspondence Tuition by highly qualified graduates of Oxford, Cambridge, London and Royal Universities, in Algebra, Trigonometry, Theoretical Mechanics, Differential and Integral Calculus, Pure Geometry, Geometrical Drawing, &c. Departments are at work preparing for London and Royal University Examinations, Science and Art, Civil Service Examinations, and all Prof. Preliminaries -Apply to Mr. J. CHARLESTON, B.A., Burlington Corre spondence College, Clapham Common, London, S. W. TO SCIENCE AND MATHL. MASTers. -Required (1) Science Teacher. Special Subjects, Electro-technics and Electricity. £160 to £200. Technical School and Institute. (2) Well-qualified Master to teach Electricity, must have had experience in the organisation of the work of a Local Technical Instruction Committee. 150 to £200. (3) Science and Maths. 130. County School, London. (4) Elementary Maths., Physics and Chemistry. Liza Secondary School. (5) Physics, Chemistry and Maths. 110 to £120, resident. School in Ireland. (6) Graduate or A. R.C.S., Chemistry, Physics and Mechanics. Lico, resident. Endowed Grammar School. -For particulars of the above and many other vacancies, address GRIFFITHS, SMITH, POWELL, AND SMITH, Tutorial Agents (Estd. over 70 years), 34 Bedford Street, Strand, London. COUNTY OF LONDON. PADDINGTON TECHNICAL INSTITUTE, SALTRAM CRESCENT, W. APPOINTMENT OF PRINCIPAL. THE LONDON COUNTY COUNCIL invites applications for the post of PRINCIPAL of the Paddington Technical Institute, Saltram Crescent, W. The Institute provides instruction in mechanical and electrical engineer. ing, physics, chemistry and biological science, art and artistic crafts. Other technological subjects will be added in due course. The Principal will be required to take up his duties in September next, and to give his whole time to the work of the Institute. He will in other respects be subject to the usual conditions attaching to the Council's service. The commencing salary will be £500 a year. Applications should be made on the official form to be obtained from the CLERK OF THE COUNCIL, Education Offices, Victoria Embankment, W.C., to whom they must be returned not later than 10 am. on Monday, July 3, 1905, accompanied by one copy of six testimonials of recent date. Persons applying through the post for the form of application must enclose a stamped and addressed envelope. Candidates other than successful candidates invited to attend the Com. mittee will be allowed third-class return railway fare, but no other expenses. Canvassing, either directly or indirectly, will be considered a disqualifi cation. Education Offices, Victoria Embankment, W.C., G. L. GOMME, Clerk of the London County Council. COUNTY BOROUGH OF ST. HELENS. EDUCATION COMMITTEE. MUNICIPAL TECHNICAL SCHOOL, THE GAMBLE INSTITUTE. The Education Committee invite applications for the following appoint. ments, dating in each case from September 1, 1905 1. LECTURER on FRENCH and ENGLISH. An English Graduate who has resided in France preferred. Salary, £130 per annum. II. LECTURER on PHYSICS and MATHEMATICS, possessing good qualifications in Electricity. Salary, 130 per annum. The gentlemen appointed will not be permitted to undertake any other duties, but they will have opportunity for study and research, the teaching in each case being mainly in the evening. Forms of application, which must be returned on or before Monday, June 26, together with further particulars, may be obtained from Education Office, St. Helens, Lancs, June 13, 1905. JEFF. J. BROOMHEAD, MINISTRY of PUBLIC INSTRUCTION, EGYPT. POLYTECHNIC SCHOOL OF ENGINEERING. An INSTRUCTOR in ENGINEERING is required to begin work on September 30 in the Polytechnic School of Engineering, Ghizeh (near Cairo). The Instructor appointed will be engaged in teaching Descriptive Engineering and Hydraulics. Candidates must have had practical experience as engineers, and have been engaged on work of a class intimately related to the subjects to be taught. They should be from 25 to 35 years of age, unmarried, and have a robust constitution. A University Degree or Diploma in Engineering is an essential qualifi cation. Salary about £430 per annum (Eg. 35 per mensem), rising to about 6553 per annum (Eg. 45 per mensem). Allowance for passage out to Egypt. Bachelor quarters are provided. Applications, with full statement of qualifications, and accompanied by copies only of testimonials, must be sent in before July 22, 1905, addressed to W. C. MACKENZIE, Esq., D.Sc., 5 The Crescent, Cromer, to whom candidates may apply for further information. MINISTRY of PUBLIC INSTRUCTION, EGYPT. SCHOOL OF AGRICULTURE. in LAND An INSTRUCTOR SURVEYING and FARM ENGINEERING is required to begin work on September 30 in the School of Agriculture, Ghizeh (near Cairo). Preference will be given to candidates having experience of Practice and Teaching. They should be from 23 to 33 years of age, unmarried, and have a robust constitution. A University Degree or College Diploma is an essential qualification. Salary about £295 per annum (Eg. 24 per mensem), rising to about £393 per annum (Eg. 32 per mensem). Allowance for passage out to Egypt. Bachelor quarters are provided. Applications, with full statement of qualifications, and accompanied by copies only of testimonials, must be sent in before July 22, 1905, addressed to W. C. MACKENZIE, Esq., D.Sc., 5 The Crescent, Cromer, to whom andidates may apply for further information. AGRICULTURE AND LANDS DEPARTMENT, SUDAN GOVERNMENT. Applications are invited for two vacancies as DEPUTY INSPECTORS in the Agriculture and Lands Department of the Sudan Government. Candidates must be from about 22 to 30 years of age and unmarried. They must possess the National Diploma, a University Degree or College Diploma, in Agriculture. Preference will be given to those who possess a thorough knowledge of Agriculture from the practical standpoint. The commencing salary will be £420 per annum (about £430 sterling). The successful candidates will be required to take up their duties as soon as possible. Applications, accompanied by copies of testimonials, birth certificate and medical certificate, must be sent on or before June 30 to G. P. FOADEN, Esq., Laburnums, Ashburton, Devon, from whom further particulars may be obtained. COUNTY BOROUGH OF BLACKBURN. EDUCATION COMMITTEE. WANTED in the Blackburn Municipal Technical School, an ASSISTANT LECTURER on the Science side, to commence duties in September next. The gentleman appointed will have to take charge of classes in pure Honours Graduate in physics, and to devote his whole time to the work. Physics preferred-opportunities of research. Salary, £120 to £140 per annum, according to qualifications. Applications, stating experience and accompanied by copies of not more than three recent testimonials, should be sent not later than July 11, 1905, to the SECRETARY, Education Offices, Blackburn. N. TAYLOR, Secretary. For other Scholastic Advertisements, see pages lxxii and lxxiv. COUNTY BOROUGH OF WEST BROMWICH. EDUCATION COMMITTEE. MUNICIPAL DAY TECHNICAL SCHOOL. A LADY ASSISTANT will be required in the above Secondary School in September next. Candidates must be well qualified for ordinary Form work both as regards educational and teaching qualifications. Preference will be given to one who is willing to take an active part in the school games. Commencing Salary, £90 per annum. Application, giving full particulars and enclosing copy of three recent testimonials, should be sent to the Head Master, not later than Monday, July 10. J. E. PICKLES, Secretary. UNIVERSITY OF BIRMINGHAM. DEPARTMENT OF METALLURGY. Applications are invited for the post of ASSISTANT LECTURER and DEMONSTRATOR in METALLURGY. Stipend, £150 per annum. The successful candidate will be required to commence work on September 1 next, to devote his whole time to the duties of the office, and to work under and carry out the instructions of the Professor of Metallurgy. Applications, accompanied by copies of three recent testimonials, should be forwarded to the undersigned on or before Tuesday, July 11. Further particulars may be obtained from GEO. H. MORLEY, Secretary. WANDSWORTH TECHNICAL INSTITUTE. TEACHER of APPLIED MECHANICS and of MACHINE CON STRUCTION (Elementary) required for next Session. Particulars and form of application may be obtained from the REGISTRAR. INDIA. Two Masters wanted in August for THE UNIVERSITY OF LEEDS. CHEMICAL DEPARTMENT. Applications are invited for the post of DEMONSTRATOR. Salary, L130 per annum. Applications should be sent not later than July 8 to the REGISTRAR, from whom further particulars may be obtained. PHYSIOLOGY.-Wanted, a Teacher for mixed elementary and practical evening class.-Apply SEC., Morley College, Waterloo Road, S. E. CITY OF BIRMINGHAM EDUCATION PHYSICS.-Tuition or other work required COMMITTEE. for long vacation by M.Sc. (Manchester).-Box 1860, c/o NATURE. R.C.S. Student wants Situation: Chemistry, Physics.-H. W. KING, 23 Conway Road, S. Tottenham, N. UNIVERSITY COLLEGE OF WALES, F. G. CUTTELL, Preparer of ROCKS, ABERYSTWYTH. LECTURESHIP IN MATHEMATICS. The Council invite applications for the Post of Lecturer in Mathematics at the above College. Applications, together with copies of testimonials, must reach the undersigned, from whom full particulars may be obtained, not later than Monday, July 10, 1905. J. H. DAVIES, Registrar. MINERALS, &c., for Microscopic Examination.-19 Abbotstone Road, Putney, S. W. G. BOWRON, 57 EDGWARE ROAD, LONDON, W., has always on hand a large and varied stock of SECOND-HAND Application forms, to be returned not later than July 5, may be obtained advantage." from the SECRETARY. UNIVERSITY OF SHEFFIELD. The Council will require at the beginning of October next the services of an ASSISTANT LECTURER and DEMONSTRATOR in ZOOLOGY. Applications to reach the undersigned, from whom further particulars may be obtained, by July 10. W. M. GIBBONS, Registrar. UNIVERSITY OF SHEFFIELD. The Council will require at the beginning of October next the services of an ASSISTANT LECTURER in MATHEMATICS. Applications to reach the undersigned, from whom further particulars DRAWING INSTRUMENTS. Best Make and Finish. T SQUARES, DRAWING BOARDS. Obtained through any Optician. |