cl 



NATURE 



[6'c//. 4, iS;^ 



MICROSCOPIC OBJECTS 



Of saperlative perfection, illustrating Histology and every branch of Micro- 

 scopy. Catalogue post free and gratis on applicaUon. 



PARIS UNIVERSAL EXHIBITION, 1878. 



Prize Medal awarded for Excellence, Variety, (s'c, 

 ■DMUND WHEELER, 48N, Tollington Road. HoUoway, London, N. 



OWENS COLLEGE, MANCHESTER. 



The next Session will commence in the Department of Arts, Sc'ence, and 

 Law on the 7th October, in the Medical Department on the i^t (-'ctober, and 

 in the Evenmg Classes on tiie 13th October. Candidates for admission must 

 not be under 14 years of age, and in the Arts and Science Department those 

 under 16 will be required to pass a preliminary examination in English, 

 Arithmetic, and Elementary Latin. 



Prospectuses of the several Departments may be obtained from Mr, 

 Cornish, Piccadilly, and c iher Eock-f Hers in Manchester, and at the College 

 J. HOLME NICHOLSON, Registrar. 



DUNHEVED COLLEGE (LIMITED), 



LAUNCESTON, CORNWALL. 

 ScTcn hours from London. Separate Bedrooms. Systematic Teaching 

 in Science, Foreign Languages, and University Courses. 

 Calendar post free b-om 



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



UNIVERSITY COLLEGE, LONDON. 



SESSION 1879-80. 



The SESSION of the Faculties of Medicine, of Arts and Laws, and of 

 Science, will begin on OCTtjBER ist. Instruction is provided for Women 

 in all subjects taught in the Faculties of Arts and Laws and of Science. 



The School for Boys between the ages of Seven and Sixteen will reopen 

 on September 23rd. 



Prospectuses and Copies of the Regulations relating to the Entrance and 

 fther Exhibitions, Scholarships, &c. (value about ;^ 2, 000), may be obtained 

 from the College, Gower Street, W.C, 



The Examinations for the Entrance Exhibitions will he held on the 25th 

 and 26th of September. 



The College is close to the Gower Street Station of the Metropolitan 

 Railway. 



TALFOURD ELY, M.A , Secretary. 



THE MIDDLESEX HOSPITAL. 



The WINTER SESSION wilV open on WEDNESDAY, October 1st, 

 ■with an Introductory Address at 3 p.m. by Dr. Sidney Coupland. 



The Medical School attached to the Hospital provides the most complete 

 means for the education of Students preparing for the UniTersity of London, 

 the Colleges of Physicians and Surgeons, and the Society of Apothecaries. 



Two Entrance Scholarships of the annual value of ^25 and j^zo, tenable 

 for two years, will be competed for on September 29th and fcllowing days. 



Further informatfcn may be obtained from the Dean or the Resident 

 Medical Officer at the Hospital. 



ANDREW CLARK, Dean. 



UNIVERSITY COLLEGE, LONDON. 



PRELIMINARY SCIENTIFIC (M.B) EXAMINATION OF THE 



UNIVERSITY OF LONDON. 

 The following Classes meet the requirements of Candidates : — 

 Chemistry.— Prof. Williamson. Ph.D.. F.R.S. 

 Experimental Physics.— Prof. G. C Foster, F.R.S. 

 Zoology.— Prof. Lankester, M.A., F.R.S. 



Botany and Vegetable Physiology.— Prof. Oliver, F.R.S., F.L.S. 

 The Courses of Chemistry, Practical Chemistry, and Botany enter into the 

 Ordinary Medical Curriculum, the extra fees amounting to 10 Guineas. 



Prospectuses, including information as to Classes for MATRICULA- 

 LATION, may be obtained from the College, Gower Street, W.C. 



TALFOURD ELY, M.A.. Secretary. 



SCHOOL of MEDICINE, EDINBURGH. 



(MINTO HOUSE.) 



The LECTURESHIPS on Botany and Natural History are at present 

 VACANT. Applications for either Appointment to be addressed to J. 

 Falconer King, Chemical Department, School of Medicine, Edinburgh. 



SCIENCE CLASSES in CONNECTION 



with the SCIENCE and ART DEPARTMENT.— A GRADUATE 

 in Science of London University (Honours) is open to an Engagement. 

 — Address Graduate, care of Harris, 159, Piccadilly. 



DIAMONDS AND OTHER PRECIOUS 



STONES. Scientific opinion given a« to GENUINENESS, PURITY 

 and VALUE.— Bryce Wright, 90, Great Russell Street, London. 



FOR SALE.— INDIAN ELEPHANT 



SKELETONS, two monsters, nearly twelve feet high, one macerated 

 the other not ; one has tusks valued at Rs. 400 ; to be sold, a bargain. 

 Can be seen at 6, Somerset Villas, Lordship Road, Stoke Newington, 

 London. 



Several Skins of Elliott's Pheasant on hand. 



LIVING SPECIMENS FOR THE MICROSCOPE. 



THOMAS BOLTON, MICROSCOPIST'S and NATURALIST'S 

 STUDIO, 17, ANN STREET, BIRMINGHAM. 



T. B. has la-^t week pcstcd to his subscribers specimens of ConochUui 

 volvox^^\^\\ sketch, and seme free swimming Epistj les whxh he cannot 

 identify. He has also yent out Leptodora hyalina, Hyalodaphnia kahl- 

 bergensis, Lacinularia soctaliSy Brackionus urceolaris^ ^'^c. 



Weekly announcememi* wiU be maae m tins place of organisms T. B. 

 is supplymg. 



Specimen Tube, One Shilling, post-free, 



Tiventy-six Tubes in course 0/ Six Months for Subscription of £1 is. 



Price List of Specimens en application, with stami;ed addressed envelope. 



Portfolio of Dkawin:js, One Shilling. 



The POST of SENIOR MASTER in PHY- i 



SICAL SCIENCE at Cl.fton College, Bristol, is VACANT, owing to ^' 

 Dr. Macgregou's acceptance (jf a Professorship. — Apply to the Head- 

 Mastek, giving particulars and reference-^. 



ROYAL POLYTECHNIC— CLASSES for 



the preparation of Students for University Examinations, under the 

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

 rersity Matriculation, ist and 2Qd B.Sc, Preliminary Scientific M.B., 

 Potany. Physiology, Chemistry. All the work practical. 



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, Sciettific 

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

 Ludeate Hill, London. 



JUSTIN WINSOR, Librarian. 



MINERALOGY AND GEOLOGY. 



COLLECTIONS TO ILLUSTRATE THE ABOVE SCIENCES, 

 FROM 4J. 

 SINGLE SPECIMENS FROM 3</. 



DIOPTASE, ZIRCON, RUBELLITE, XANTHOPHYLLITE, 

 SIBERIA. 



KEILHAUITE, PYROCHLORE, APATITE, NORWAY. 

 A SMALL QUANTITY OF THORITE AND ORANGITE, VERY 

 RARE. 



BLOWPIPE CASES, HAMMERS AND CHISELS, AND CRYS- 

 TAL HOLDERS. 



PEIVAT£ LESSONS AND EVENING CLASSES. 

 SAMUEL HENSON, 

 277 {Zaie II3«), STRAND, LONDON, W.C. 



MINERALS, ROCKS, AND FOSSILS. 



COLLECTIONS IN CABINETS. 



Two Hundred Specimens, 40s. ; 150 do., 30s. ; 100 do., 20J. ; 50 do., 10^, 

 Sixe of Specimens. 2 square inches. Naming and Localities guaranteed. 



Superior Cabinets fitted with Card-Trays and Catalogue included ._ 



*' The Popular Scientific Pocket Cabinet Series " comprises 9 Cabinets and 

 B24 Specimens. 2S. 6d. each Cabinet, free delivery, 4d. (See Nature. 

 March 13, No. 489, page 447.) , , , . 



The Collector's Field Apparatus complete, 21J. Hammer-holder and 

 Waist-strap, price 2s. Collecting-bag (figured and described), price 4s. 



THOMAS J. DOWNING, Geologist, &c., 



38, WHISKIN STREET, LONDON, E.C. 

 Catalogue, Lists, and " Quarterly Circular " free on receipt of 2ti. postage. 



BRITISH ASSOCIATION, 1879. 



CASTLETON, NEAR SHEFFIELD, 



The district of which Castleton is the centre is one of the most romantic 

 in the Peak. The Peveril Castle, the Peak Cavern, the " Shivering Moun- 

 tain," Mam Tor, the Pass of the Winnatts, and many other glens, caverns, 

 and hills, with the ossiferous caves, present varied objects of interest Mr. 

 John Tym (who is Assistant Curator of the Castletun Mu^.eum, the property 

 of Rooke Pennington, Esq.) has a great number of the fossils and minerals 

 from the locality on sale (mcluding teeth, &c , of the pleistocene mammalia), 

 and has also a most extensive collection of geological soecimens from all 

 parts of the world. Members of the Association will find his stock well 

 worth a visit and his prices very reasonable. 



Catalogues Post-free. 



MINERALOGY AND GEOLOGY. 



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

 including Sjjecial Collections to illustrate the various Text-boolts, in 

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

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

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

 JAMES R. GREGORY, 

 MUSEUM OF GEOLOGY, 



88, CHARLOTTE STREET, FITZROY SQUARE. 



