Ixxiv 



NATURE 



\yuly 3, 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, illustrating Histology and every branch of Micro- 

 scopy. Catalogue post free and gratis on application. 



PARIS UNIVERSAL EXHIBITION, 1878. 



Prite Mtdal awarded for Excellence, Variety, &'c. 

 EDMUND WHEELER, 48N, Tollioston Road, HoUoway, London, N. 



CARPENTER TESTIMONIAL FUND. 



The SUBSCRIPTION LIST for the Portrait intended to be placed in 

 the University of London as a memorial of Dr. Carpenter's long and valu- 

 able services to that Institution, will be finally CLOSED on the 15th of 

 July next. Subscriptions may be paid to either of the Honorary Secretaries, 

 J. G. FITCH, 5, Lancaster Terrace, Regent's Park, N.W., or 

 C. KNIGHT-WATSON, Society of Antiquaries, Burlington 

 House, W. 



ST. THOMAS'S HOSPITAL, ALBERT 

 EMBANKMENT, S.E. 



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



TWO ENTRANCE SCIENCE SCHOLARSHIPS of £60 and £io, 

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

 first entered asStudents 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 



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. 

 GlLLESFlE, at the Hospital. 

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



"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 

 number, 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. 



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 seat to the Agents, Messrs. TkDbnkr & Co.. 57 and ^a. 

 Lndgat.HiU. London. " *"' 

 JUSTIN WINSOR . Librarian. 



DUNHEVED COLLEGE (LIMITED), 



LAUNCESTON, CORNWALU 

 Seven hours from London. Skparatk 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., 

 Botany, Physiology, Chemistry. All the work practical. 



MOLLER'S £4 DIATOM TYPE-PLATE 



for SALE, price_ £2 5s., guaranteed perfect, and in every respect in 

 the same condition as new ; with Catalogue complete.— Address 

 F.R.M.S., 5, Lausanne Road, Peckham, S.E. 



WANTED, by an Intelligent Youth, 19 years 



of age, a Situation as ASSISTANT in a Laboratory, Museum, or Pho- 

 tographic Studio.— Apply to H. Head, Stamford Hill, N. 



FOR SALE.— INDIAN ELEPHANT 



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

 the other not ; one has tusks valued at Ks. 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 last week posted to his f^^\hs,cx\h^Ts As^Ianchna Bn'shiweiiii 

 and other Rotifers, with drawings. The previous week he sent out speci- 

 mens of the Glass Larva Corethra pluniicornis. He has also distributed 

 Pandotina morum, Nitella, Chara, Alcyonella /ungosa, Criatatella tnucedo^ 

 Fredericelln sultana., MeUcerta, Floscularia, Hydra (with generative 

 organs), &c. 



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

 is supplymg. 



Specimen Tube, One Shilling, post-free, 



Twenty-six Tubes in course ef Six Months for Subscription »/ £1 is. 

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



TO BE LET, FURNISHED, a Comfortable 



HOUSE, about thirty miles from London, with large old-fashioned 

 Garden and Meadow, the Garden well stocked with Flowers, Fruit 

 Trees, and Vegetables. Two good Sitting-rooms five Bed-rooms, and 

 Offices. Suitable for a family wishing to spend a few months in the 

 country. Terms moderate. — Apply X?Y., care of Nature Office, 29, 

 Bedford Street. Strand. 



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. 



EQUATORIAL TELESCOPE.— sf O.G., 



several eye-pieces, finder, rackwork stand, unusually strong, perfect 

 condition. Sale, « exchange for fine Violin. — Polaris, 17. Brcc-tnock 

 Crescent, N.W. 



ELECTRICAL, SCIENTIFIC, & PHOTO- 



GRAPHIC APPARATUS.-Elcctric BeUs, Fire ard Thief Aarms, 

 and Automatic Switches. Induction Coils, Frictional Machines, Lamps, 

 and Batteries. Microphones, Wires, Magnets, Carbons, and all Mate- 

 rials. Repairs and Alterations. New Illustrated Descriptive Catalogue, 

 one Stamp. Cameras, Dry Plates, Sensitive Paper, and all Chemicals. 

 Photo. List free.— DALE & CRAMPTON, Manufacturing Opticians, 

 4, Little Britain, London, E.C. 



The LANCASTER POCKET CAMERA 



for plates 4J X 3J inch, havinc; three double dry-plate Slide*, Umbrella 

 Stand, best Lens with plate of Diaphragms, &c., &c., ;C5- Particulars 

 free. 



The LANCASTER CARTE PHOTOGRA- 

 PHIC APPARATUS, with Chemicals, &c., &c., complete, £3 jr. 

 FIRST QUALITY ASTRONOMICAL TELESCOPES with Object 

 Lenses, by Wray, al-inch, jCs os. ; 2}-inch, £7 los. ; 2,-inch, ^lo ; 

 3-inch, jCxs 10s.; 3i-inch, £15 15s.; 4-inch, £2$; 4j-iBch, ^^40: 

 5-inch, £s5, &c. Capital Student's Microscope, £3 y. Collegian's 

 First Quality Microscope, £^ 5^. Illustrated Catalogue, 3 Stamps. 

 J. LANCASTER & SON, Opticians Birmingham. 



CASTLETON, DERBYSHIRE. 

 JOHN TYM 



Has largely added to his stock of Fossils and Minerals, and is now oiTering 

 greatly improved Educational Collections at very Low Prices. 



For full particulars see his Catalogue, sent post free on application. 



Postal Address — 



CASTLETON z'id SHEFFIFXD. 



Mr. TENNANT, F.G.S., Professor of 



Mineralogy and Geology, Mineralogist by Appointment to Her Majesty 

 and the Baroness Burdett-Coutts, 149, Strand, London. W.C., having 

 been fifty years in business, contemplates shortly RETIRING, and 

 ofi"ers for SALE several of his extensive COLLECTIONS of Minerals, 

 Rocks, and Fossils. They are well adapted for first-class Educational 

 Establishments, Provincial or Colonial Museums, or for the Private 

 Study of any Scientific Person wishing to become acquainted with the 

 above-mentioned Sciences. From j^i,ooo to 5,000 Gumeas. Students' 

 Collections at 2, 5, 10, zo, to 50 Guineas. 



MINERALOGY AND GEOLOGY. 



A New List of Collections of Fcssils, 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 ar.d Materials of all kinds in Cases or separately. New Patterns of 

 Geological Hammers, with prices. List of N«w and Second-han«l Books of 



JAMES R. GREGORY, 



MUSEUM OF GEOLOGY, 



88, CHARLOTTE STREET, FITZROY SQUARE. 



