xc 



NATURE 



{^uly 17, 1879 



WANTED, Clean Copies of NATURE, No. 472, 

 for November 14, 1878. Address — Office of 

 NATURE, 29, Bedford Street, Strand. 



MICROSCOPIC OBJECTS 



Of superlative perfection , illustnitine: Histology and every branch %f Micro- 

 scopy. Catalogue post free and gratis on appucation. 



PARIS UNIVERSAL EXHIBITION, 1878. 



Prize Medal awarded for Excellence^ Variety^ &^c, 

 EDMUND WHEELER, 4BN, Tollineton Road, HoUoway. London, N, 



ST. THOMAS'S HOSPITAL, ALBERT 

 EMBANKMENT, S.E. 



The WINTER SESSION, 1879-80, will commence nn OCTOBER ist. 



TWO ENTRANCE SCIENCE SCHOLARSHIPS of /60 and ;C4o, 

 OPEN to all First Year's Students, without the condition of their having 

 first entered as Students of the Hospital, will be awarded in the first week of 

 October. Subjects : Chemistry and Physics, with either Botany or Zoology, 

 at option. SPECIAL CLASSES for the PRELIMINARY SCIENTIFIC 

 of University of London, with Practical Work in Laboratories and Museums, 

 are to be held from October to July, and for the ist M.B. from January to 

 July. 



Several Medical Practitioners in the neighbourhood receive Students for 

 residence and supervision, and a register of mspected and approved lodgings 

 is kept in the Secretaiy's office. 



Prospectus and all particulars may be obtained from the Secretary, Dr. 

 Gillespie, at the Hospital. 



W. M. ORD. M.D., Dean. 



A PRINCIPAL is REQUIRED for the 



Central Schools now being established by the Sheffield School Board, 



with the view chiefly of carrying forward the Education of Pupils from 



the Higher Standards of the various Elementary Schools in the district. 



A Graduate of one of the Universities preferred. He must be a good 



organiser^ and high scientific attainments would be considered an 



advantage. 



In making the selection, the Board hope to have the advice and help of 



the head masters of some of the great public ."ichools and other gentlemen of 



experience in educational matters. 



The Salary will be not less than ;C400 per annum to begin with, and its 

 increase will be made dependent to some extent on the progress and success 

 of the School. The School will occupy an important position; and the 

 buildings, carefully designed for their special purpose, are most complete, 

 Further information may be obtained by intending Candidates from the 

 Clerk of the Board, to whom applications should be sent on or before the 

 28th July inst. 



By Order, JNO. F. MOSS, Clerk, 



Offices of the School Board, Sheffield, July 1st, 1879. 



SIR JOSIAH MASON'S SCIENCE 

 COLLEGE, BIRMINGHAM. 



It is intended to OPEN this College in the month of OCTOBER, 1880. 



The full staff of Professors will include those necessary to enable Students 

 to pass the Examinations of the University of London for the degrees of 

 B.Sc. and D.Sc. 



The Professors of Mathematics, Physics, Chemistry, and Biology (includ- 

 ing Botany and Zoology), will be the first appointed. 



The appointments will be made for a term of three years, renewable at 

 the pleasure of the trustees. The stipend in each case will be ;^25o per 

 annum, with half the class fees. 



Applications from Candidates must be forwarded not later than the 31st 

 of December next to the Honorary Secretary to the Trustees, Mr. G.J. 

 Jchnson, 36, Waterloo Street, Birmingham, from whom any further infor- 

 mation may be obtained. 



By a resolution of the Trustees, Candidates are specially requested to 

 abstain from canvassing. 



COMPLETE SET of NATURE to MAY, 



1879. 19 Vols., cloth, £s iSJ- 



GRATIS to BOOK-LOVERS. — General 



Catalogue, eighty pages, octavo, comprising Scientific Works, French 

 and Italian Literature, selected Englisn Literature, &:c. 



WILLIAM GEORGE, xxvi. Park Street, Bristol. 

 NOTICE TO ANTIQUARIANS.— "BibliothecaAntiqua et Curiosa" 

 is nai included in above list, but forms sixty-four pages, octavo, and will 

 ie forwarded at request 



"HALL MARK" 

 FOR THERMOMETERS. 



The Kew Committee of the Royal Society hereby give Notice that after 

 this date all Thermometers verified at the Kew Observatory will be marked, 

 free of expense, with their monogram, ** K.O.," interlaced, and a register 

 DumlKr, in addition to the maker's number. 

 The Table of Errors will be furnished as usual. 

 By order, 



G. M. WHIPPLE, Superintendent. 

 Kew Observatory, December 13, 1878. 

 Scale of Charges for Verification, &c., pest free on application. 



LIVING SPECIMENS FOR THE MICROSCOPE. 



THOMAS BOLTON, MICROSCOPIST'S and NATURALIST'S 

 STUDIO, 17, ANN STREET. BIRMINGHAM. 



T. B. has last week posted to his subscribers firom Falmouth a specimen c 

 a Diseophora, the Lucernaria auricula, with drawing from life by W. P' 

 Marshall, C.E., and description by Professor Huxley. He also sent out 

 several other specimens of marine organisms, including Hydroioa, Polyaoa, 

 Echinoderms, &c. 



Weeklir announcements will be made in this place of organisms T. E* 

 is supplymg. 



Specimen Tube, One Shilling, post-free, 



Twenty-six Tubes in course 0/ Six Montlis f0r Subscription of £,\ ij. 

 Price List of Specimens on application, with stamped addressed envelope. 



DUNHEVED COLLEGE (LIMITED), 



LAUNCESTON, CORNWALL. 

 Seven hours from London. Separate Bedrooms. Systematic Teaching 

 in SciEHCK, Foreign Languages, and University Courses. 

 Calendar pott free from 



The Principal— benjamin RALPH. LL.B. Dub. 



MR. BROWNING begs to announce that 



he has instructions to sell a large quantity of SCIENTIFIC APPA- 

 RATUS, the property of a Gentleman lately deceased. The apparatus 

 is all of recent make and equal to new. A List of the Apparatus, with 

 Prices, will be forwarded on application to JOHN BROWNING, 6j, 

 Strand, London, W.C. 



FIRTH COLLEGE, SHEFFIELD. 



A PRINCIPAL is wanted for this Institution, which is under the govern- 

 ment of a Council embracing representatives of the Universities of Oxford, 

 Cambridge, and London, and various public bodies. He will be required to 

 take an active part in the teaching, as well as to devote himself to the gene- 

 ral management of the College and to the promotion of its success. 



The Principal's salary will be ;C3oo per year, together with half of the fees 

 of his own classes and 10 per cent, of the fees of the remaining classes. The 

 total salary to be guaranteed not to fall short of j£4oo per annum. 



Every Candidate is requested to give particulars of his age, education, and 

 academical experience, the subjects he is prepared to teach, and also to fur- 

 nish the names of three gentlemen to whom reference may be made. Testi- 

 monials need not be forwarded unless asked for, and no personal application 

 must be made to Members of the Council 



Further particulars may be obtained of 



JNO. F. MOSS, Secretary. 



Firth College, Sheffield, July 8, 1879. 



PHYSICAL SOCIETY.— The Reprint of 



Sir Charles Wheatstone's SCIENTIFIC PAPERS.— Any member 

 who, having paid his subscription for the current year, has not yet received 

 his copy, is requested to communicate with the Treasurer, Dr. Atkin- 

 son, Portesbery Hill, Camberley, Surrey. 

 ^^*» The price of this volume to non-members is isj., and it may be had 

 through Messrs. Taylok and Francis, Red Lion Court, E.C. 



INSTITUTE of CHEMISTRY.— The Presi- 



dent has offered two Prizes of ^%o each for the two best original Inves- 

 tigations involving Gas An.T.lyscs. These Prizes will be open to Asso- 

 ciates, and to all persons (except Feltows of the Institute) who jhall, 

 before the 31st December next, have qualified for the Associateship in 

 all respects short of passing the prescribed Practical Examination : and ; 

 successful competition for these Prizes will be accepted in lieu of suclk : 

 practical examinaiion. — Further infcrmation may be obtained on appli- 

 cation to the Secretary, Mr. C. E. Groves, Somerset House Terrace» 

 W.C. 



ASTRONOMICAL TELESCOPES. — Cal- 



VER'S REFLECTING TELESCOPES of the highest excellence, fron» 

 sJ in. to 36 in. aperture ; ^ in., with equatorial motion, £\^ 151. ; 6 in. 

 equatorial, complete. Photo, with Calver's " Hints on Silvered Glass 

 Reflecting Telescopes," 9 stamps.— G- CALVER, F.R.A.S., Hill 

 House, widford, Chelmsford. 

 FOR SALE.— A very fine 15J in. EQUATORIAL, with Clock. 



LIBRARY OF HARVARD UNIVERSITY, 

 CAMBRIDGE, MASS., U.S.A. 



Packages for the General Library, or for any of the Departmental . 

 Libraries (Astrenomical Obser^■atory, Botanic Garden, Bussey Institutioni 

 Diyinity School, Law School, Museum of Comparative Zoology, Scientific 

 School), may be sent to the Agents, Messrs. TrI'bnhr & Co., 57 and 59, 

 Ladgate Hill, I^ndon. 



JUSTIN WINSOR. Librarian, 



LABORATORY, 38, GRACECHURCH STREET, LONDON, E.C- 



A. ANTHONY NESBIT, F.C.S., 



WATER ANALYST, 



Performs every description of Water Analysis on moderate terms; 



Properly cleansed bottles for the reception of samples sent to any part of 



the Kingdom. 



