Iviii 



NATURE 



\yune 19, 1879 



MICROSCOPIC OBJECTS 



Of superlative perfection, illustrating Histology and eveir branch of Micro- 

 scopy. Catalogue post free and gratis on application. 



PARIS UNIVERSAL EXHIBITION, 1878. 



Prize Medal awarded for Excellence, Variety, Ss'c. 

 EDMUND WHEELER, 48N,Tomneton Road, Holloway, London, N. 



THE YORKSHIRE COLLEGE. 



The Worshipful Company of Clothworkers * f the City of London, having 

 increased their Endowment of the Textile Industry Department of the Col- 

 lege, so as to include Instruction in Dyeing, the Council of the College is 

 prepared to receive Applications for the post of INSTRUCTOR. Stipend, 

 ;^30o a year and half the Fees. Preference will be given to Candidates who 

 are familiar with the processes of French and German Dyemg, and with the 

 methods of Instruction pursued in the Continental Schools. Applications, 

 accompanied by a statement of the Candidate's experience, together with 

 copies of testimonials, to be sent not later than August mh, to the Secretary 

 of the Yorkshire College, from whom further information may be obtained. 



The work of instruction will begin in January, 1880. 



W. F. HUSBAND, Secretary. 



Leeds, June i8th, 1879. 



The COUNCIL of the YORKSHIRE COL- 

 LEGE, LEEDS, invite Applications for the post of ASSISTANT 

 LECTURER in CLASSICS and MATHEMATICS. Stipend, ;£ioo 

 a year, and a share of certain tutorial fees. Duties to commence Octo- 

 ber 1st. Preference will be given to Graduates of the University of 

 London. Applications, accompanied by copies of testimonials, to be 

 sent on or before Friday, June 27th, to the Secretary, from whom 

 further information as to duties may be obtained. 



KING'S COLLEGE, LONDON. 



OFFICE OF DEMONSTRATOR IN PHYSIOLOGY. 

 The Council are ready to receive applications for this office. — Apply to 

 J. W. CUNNINGHAM, Secretary. 



INSTITUTE of CHEMISTRY.— The Presi- 



dent has offered two Prizes of £,y> each for the two best original Inves- 

 tigations involving Gas Analyses. These Priies will be open to Asso- 

 ciates, and to all persons (except Fellows of the Institute) who shall, 

 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 Priies will be accepted in Ueu of such 

 practical examinaiion.— Further information may be obtained on appli* 

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

 W.C. 



AERONAUTICAL SOCIETY OF GREAT 

 BRITAIN. 



GENERAL MEETING of MEMBERS at the Society of Arts, John 

 Street, Adelphi, en MONDAY, the 23rd inst. Chair taken at 8 p.m., 

 precisely. ... 



Papers read and Models exbibited. 



For Membership or Admission to the Meeting apply to a Member or to 

 FRED. W. BREAREY, Hon. Sec. 



Maidenstone Hill, Blackheath, S.E. 



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. 



ASTRONOMICAL TELESCOPE.— af O.G., 



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

 condition. Sale, or exchange for fine Viohn.— Polaris, 17, Brecknock 

 Crescent, N.W. 



DURING the RECENT GALES a large 



quantity of interesting FOSSILS have been washed out of the London 

 Clay Cliffs of Sheppey. A representative Series of loo Specimens, 

 correctly named, will be sent carriage paid to London on receipt of io5. 

 by W. H. SHRUBSOLE, F.G.S., Sheemess-on-Sea. 



FOR SALE.— A very fine SPECTROSCOPE 



of two large prisms, micrometers, and all necessary apparatus of the 

 best construction ; made for astronomical faint spectra, but suitable for 

 many other branches of study. Has never been used. Original cost, 

 ^£50 ; will be sold for ;£is. To be seen at the maker's, Mr. J. Brown- 

 INC, 63, Strand. 



ADVERTISER seeks ENGAGEMENT as 



ASSISTANT in Scientific Laboratory. Several First-class Certificates 

 from South Kensington. No objection to assist at Lectures.— Address 

 G. C 59, Robert Street, Chelsea, S.W. 



LIVING SPECIMENS FOR THE MICROSCOPE. 



THOMAS BOLTON, MICRO SCO FIST'S and NATURALIST'S 

 STUDIO, 17, ANN STREET. BIRMINGHAM. 



T. B. has last week posted to his subscribers specimens cf l/ro^Ufia 

 volvoxy with drawing and description. He has also distributed Volvox 

 globaior, Closterium, ChatophcraeU^ans, Dmparnaldia gloineraia, Nitella, 

 Chara, Vallisneria, Amoebse, Vorticellidx, Hydrac, Cristatella, Melicerta, 

 Hydatina, Brachionus, &c. 



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

 is supplying. 



Specimen Tube, One Shilling, post-free. 



Twenty-six Tubes in course of Six Montlis/or Subscription of £,\ is. 

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



TO LET (Furnished) for Three or Four 



Months from July, a pretty, small COUNTRY RESIDENCE, with 

 Conservatory, Garden, Croquet Lawn, Coach-house and Stable, three 

 miles from Southampton, stands high on gravel soil, contains three Sit- 

 ting, five Bed-rooms, and all necessary accommodation.— Apply to Mrs. 

 A., care of Mr. Wiseman, 15, Above-bar, Southampton. 



"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. Soperinteni^ent. 

 Kew Observatory, December 13, 1878. 

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



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. 



THIN GLASS FOR MICROSCOPIC 



MOUNTING, of best quality. Circles, 3*. 6d. per ounce ; Squares, 

 2S. gd. ; pest free 2^. extra ; Ground edged Slips, 5s. per gross ; also 

 other Mounting Materials and Objects prepared for mounting.— CHAS. 

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



ROYAL POLYTECHNIC— CLASSES fer 



the preparation of Students for University Examinations, uncer the 

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

 versity Matriculation, ist and and B.Sc, Prehminary Scientific M.B., 

 Botany. Physiology, Chemistry. All the work practical. 



TUITION for the UNIVERSITIES, CIVIL 



Service, and Army. — Pupils prepared for the above by a Tutor in South 

 Kensington. Address — Tutor, Lamley's Library, Thurloe Place, 

 Seuth Kensington. 



LIBRARY OF HARVARD UNIVERSITY, 

 CAMBRIDGE, MASS., U.S.A. 



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

 Likraries (Astronomical Observatory, Botanic Garden, Bussey Institution, 

 DiTiaitj School, Law School, Museum sf Comparative Zoology, Scientific 

 Scheol), may be sent to the Agents, Messrs. TrCbnkr & Co., 57 aad 59, 

 Ludgate Hill, London. 



JUSTIN WINSOR, Librarian. 



DUNHEVED COLLEGE (LIMITED), 



LAUNCESTON. CORNWALL. 

 SeTen hours from London. Separatb Bedrooms. Systematic Teaching 

 in Science, Foreign Languages, and University Courses. 

 Calendar post free from, 



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



MINERALS, ROCKS, AND FOSSILS. 



COLLECTIONS IN CABINETS. 

 Two Hundred Specimens, 40s. ; 150 do., 30J. ; 100 do., aos. ; 50 do.. lor. 

 Siie of Specimens, 2 square inches. Naming and Locahties giiaranteed. 

 Superior Cabinets fitted with Card-Trays and Catalogue included. 

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

 294 Specimens. 2s. 6d. each Cabinet, free delivery, ^d. (See Nature, 

 March 13, No. 489. page 447.) 



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

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

 THOMAS J. DOWNING, Geologist, &c., 

 38, WHI£KIN STREET, LONDON, E.C. 

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



