cxxx 



NATURE 



[Feb. 27, 1879 



MICROSCOPIC OBJECTS 



01 iuperlative perfection, illustrating Histology and every branch of Micro- 

 scopy. Catalogue post fre« and gratis on application. 



PARIS UNIVERSAL EXHIBITION, 1878. 



Prize Mtdal awarded for Excellence, Variety, Qx'c, 

 EDMUND WHEELER, 48t», Tollington Road, HoUoway. London, N. 



UNIVERSITY OF LONDON. 



The Office of ASSISTANT REGISTRAR having become VACANT by 

 the Appointment of Mr. Milman to the Registrarship, the Senate desire to 

 appoint a Successor possessing special qualifications, either Scientific or 

 Medical, who must be prepared to enter upon his duties on ist June next. 



The Salary attached to the office is ;^ 500 per annum. 



Candidates are desired to state their age (which must not be less than 25 

 ilor more than 45 years), previous career, and qualifications, and to forward 

 their applications, on or before Saturday, March 15th, to the undersigned, 

 of whom further information may be obtained. 



THOMAS DOUSE, Clerk to the Senate. 



University of London, Burlington Gardens, W., February 20, 1879. 



OWENS COLLEGE, MANCHESTER. 



The Office of DEMONSTRATOR and ASSISTANT LECTURER in 

 PHYSIOLOGY in the College will become VACANT at the end of March. 

 The Salary offered is ;£ 1 50 per annum. The Dean of the Medical School 

 will give further information if desired. 



Applications addressed to the Senate, and testimonials (printed copies 

 would be desirable), will be received up to tha 22nd March. 



J. HOLME NICHOLSON, Registrar. 



UNIVERSITY OF LONDON. 



MATRICULATION EXAMINATION. 



Instruction in all fhe subjects of the above Examination at Guy's Hos- 

 pital. The Classes for the June Examination will commence on Monday, 

 March 31st. The Classes are not confined to Students of the Hospital. 



For further particulars address the Dean, Guy's Hospital, S.E. 



"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, 

 f-ee of expense, with their monogram, *' K.O.," interlaced, and a rttgistar 

 ■umber, 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., post free on application. 



NEW ATHEN/EUM CLUB 



FOR GRADUATES OF UNIVERSITIES AND MEMBERS OF 



SCIENTIFIC SOCIETIES. 



The SECOND 500 MEMBERS are now being ADMITTED. 



The Club being proprietary. Members incur no pecuniary liability beyond 

 the Admission Fee and Annual Subscription. 

 For Prospectus and Form of Application for Membership apply to 



J. LOGAN LOBLEY, Secretary. 

 86, Suffolk Street, Pall Mall, S.W. 



SUNDAY LECTURE SOCIETY.— LEC- 



TURES at ST. GEORGE'S HALL, Langham Place, each SUNDAY 

 AFTEP.NOON, commencing at Four o'clock precisely. Sunday, 

 March 2. — Richard A. Proctor, Esq., B.A, F.R.A.S. (Author of 

 " Other Worlds," &c.), on " Sabbath Superstitions : the Human and 

 Astronomical Origin of the Week." — Members' Annual Subscription, 

 {,\. Payment at the Door — One Penny, Sixpence, and (reserved seats) 

 One ShilUng. 



TO INVENTORS and OTHERS.— The 



Directors of the ROYAL POLYTECHNIC are prepared to exhibit 

 and explain all Inventions and Discoveries of public interest. — For 

 particulars apply to the Secretary of the Institution. 



TUITION for the UNIVERSITIES and 



ARMY. — Non-resident Pupils received for Individual Instruction by a 

 Private Tutor. — Address Tutor, 8, Gloucester Terrace, Onslow Gardens, 

 S.W. 



LIBRARY OF HARVARD UNIVERSITY, 

 CAMBRIDGE, MASS., U.S.A. 



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

 Libraries (Astronomical Observatory, Botanic Garden, Bussey Institution, 

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

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

 Lu<\e;abe HilL London. 



JUSTIN WINSOR, Librarian. 



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 specimens of the Infusoria, 

 Spirosfomum antbiguunt, with a drawing of same in white on a black 

 ground by H. E. Forrest, and description also. He has also distributed 

 Embryo Trout, Stephanoceros, Melicerta, Hydatina, Rhinops, -Nitella, 

 Mussels, Cyclas, &c. 



Weekly announcements will be made in this place of organisms T. B. 

 is supplying. 



Price List of Specimens on application, with Stamped Addressed 

 Envelope. 



NOTICE OF REMOVAL. 

 MESSRS. S. & B. SOLOMONS, Opticians 



to the Government, have REMOVED from No. 39, Albemarle Street 

 (where they have been established over 50 years), to 



61, PALL MALL 



(Opposite MARLBOROUGH HOUSE). 



Specialties.— The £^ ASTRONOMICAL TELESCOPE, Microsco- 

 pical and Philosophical Instruments, high-class Gold and Steel and other 

 TINTED SPECTACLES. 



ELECTRICAL & SCIENTIFIC APPARA- 

 TUS for AMATEURS and the TRADE.— Microphones of every form, 

 from i^. dd. New cheap Electric Lamps and Batteries. Induction 

 Coils and Frictional Machines are specialties. Electrical Bells, Fire 

 and Thief Alarms, and Automatic Switch-boards. Magnets, Covered 

 Wires, Screws, and all Materials. Apparatus for Science Tea«hers. 

 Illustrated Catalogue, one stamp. Repairs and Alterations. Appara- 

 tus made to sketch.— DALE & CRAMPTON. Manufacturing Elec- 

 tricians, 4, Little Britain, E.C. 



DUNHEVED COLLEGE (LIMITED), 



LAUNCESTON, CORNWALL. 

 Seven hours from London. Separate Bedrooms. Systematic Teaching 

 in Science, Foreign Languages, and University Courses. 

 Calendar post free from 



The Principal— BENJAMIN RALPH, LL.B. Dub. 



ROYAL POLYTECHNIC— CLASSES for 



the preparation of Students for University Examinations, under the 

 direction of EDWARD B. AVELING, D.Sc, F.L.S. London Uni- 

 versity Matriculation, ist and 2nd B.Sc, Preliminary Scientific M.B., 

 fiotany. Physiology, Chemistry. All the work practical. 



BERNERS COLLEGE.— The Laboratory 



and Class Rooms are open for Private and Class Study, morning and 

 evening. ANALYSES performed. Especial arrangements for Gentle- 

 men and Ladies preparing for the various Examining Boards. Fees 

 moderate. — ^Apply to Prof. Gardner, at Bemers College, 44, Bemers 

 Street. W. 



THIN GLASS FOR MICROSCOPIC 



MOUNTING, of best quality. Circles, 3^. td. per ounce ; Squares, 

 2J. ijd. ; post free id. extra ; Ground-edged Slips, 5J. per gross ; also 

 •ther Mounting Materials and Objects prepared for mounting.— CH AS. 

 PETIT, 151, High Street, Stoke Newington, N. 



WITHERNDEN SCHOOL, CATERHAM 



VALLEY, SURREY.— Principal, Mr. C. H. LAKE, B.A. Lond. (in 

 Honours). Education on Natural Principles. A limited number of Pupils. 



WANTED, a LABORATORY MAN.— 



— Apply personally between 2 and 4 p.m., or by letter, lo A. V., n, 

 Sahsbury Square, Fleet Street. 



GEOLOGY.— In the Preface to the Student's 



ELEMENTS of GEOLOGY, by Sir Charles Lyell, price 91., he says : 

 — " As it is impossible to enable the reader to recognise rocks and mine- 

 rals at sight by aid of verbal descriptions or figures, he will do well to 

 •btain a well arranged collection of specimens, such as may be procured 

 from Mr. TENNANT (149, Strand), Teacher of Mineralogy at King's 

 College, London." These Collections are supplied on the followmg 

 terms, in plain Mahogany Cabinets : — 



100 Specimens, in Cabinet, with 3 Trays ......... £,i a o 



20* Specimens, in Cabinet, with 5 Trays ... .» .~ 5 5 o 



300 Specimens, in Cabinet, with 9 Drawers ... ... 10 10 o 



400 Spetimens, in Cabinet, with 13 Drawers ~. ... 21 o o 



More extensive Collections at 50 to 5,000 Guineas each. 



MINERALOGY AND GEOLOGY. 



A New List of Collections of Fossils, Minerals, and Rocks now ready, 

 including Special Collections to illustrate the various Text-books, in 

 Cabinets. List of Sections of Rocks for the Microscope. Blowpipe Appa- 

 ratus and Materials of all kinds in Cases or separately. New Patterns of 

 Geological Hammers, with prices. List of New and Second-hand Books of 



JAMES R. GREGORY, 



MUSEUM OF GEOLOGY, 



88, CHARLOTTE STREET, FITZROY. SQUARE. 



