XV 111 



NATURE 



\_Nov. 21, 1878 



MICROSCOPIC OBJECTS 



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

 scopy. Catalogue post free and gratis on application. 



PARIS UNIVERSAL EXHIBITION, 1878. 



E. WHEELER'S OBJECTS ARE IN THE BRITISH SECTION, GROUP 2, CLASS Vlll. 

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



UNIVERSITY COLLEGE (LONDON)" 

 MEDICAL SOCIETY. 



An ADDRESS on "The Use of Physiology to Medical Students " will 

 be delivered by Dr. MICHAEL FOSTER, M.A , F R.S., Prselector in 

 Physiology, and Fellow of Trinity College, Cambridge, in the Botanical 

 Theatre of University College, Gower Street, on TUESDAY, December 3, 

 at 8 P.M. Admission (Gentlemen only) by Ticket, to be obtained on appli- 

 cation to the Secretaries of the Society. 



W. R. PARKER 



'' } Ho 



SUNDAY LECTURE SOCIETY.— LEC- 



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

 AFTERNOON, commencing at Four o'clock precisely. Sunday, 

 November 24, 1878 :— Dr. G. G. Zerffi, F.R.Hist.S., F.R.S.L., on 

 " Long and Short Chronologists." — Members' Annual Subscription, £,\. 

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

 Shilling. 



WANTED, for the INSTITUTION of 



NAVAL ARCHITECTS, a SECRETARY. His Salary will be /250 

 a year, and he will be required to give security to the extent of ;£500. 

 His duties will involve attendance from Ten to Four daily, with occa- 

 sional extra attendance at Meetings. — Apply, by letter only, to C. W. 

 Merrifield, at the Offices of the Institution, 5, Adelphi Terrace, 

 W.C. Applications must be sent in not later than November 30. 



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. 



LIBRARY OF HARVARD UNIVERSITY, 

 CAMBRIDGE, MASS., U.S.A. 



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

 Libraries (A -tronomical Observatory, Botanic Garden, Bussey Institution, 

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

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

 LudgateHill, London. 



JUSTIN WINSOR, Librarian. 



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. 



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 Berners College, 44, Berners 

 Street. W 



WrfHERN^Eir~SCHOOL7CATERHAM 



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

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



THE LONDON ATHENAEUM, 



26, SUFFOLK STREET, PALL MALL. 

 This Institution being now established (500 Members having been ad- 

 n.tted), an Admission Fee of Two Guineas will now be payable by new 

 Members. 



Annual Subscription : — Town Members, Two Guineas ; Country Members, 

 One Guinea. 



Members admitted in November do not pay the subscription for the 

 current year. 



J. LOGAN LOBLEY, Secretary. 



SHELLS AND MINERALS. — A very 



choice Collection of Shells, named according to H. and A. Adams's 

 work rn Recent Shells, suitable for a Public or Private Scientific 

 Museum. Price 100 Guineas. Also a Collection of Minerals (about 

 700), labelled ready for display. Price 80 Guineas. — Address Meek, 

 Thomas, & Co., Advertising Agents, 4, Cable Street, Liverpool. 



FOR SALE.— A Splendid Collection of 



Falklaad Island BUZZARDS, HARRIERS, and FALCONS, set up 

 hy Gardner. Also a King Penguin and two King Shags. — Address L., 

 Post OiTice, Wimbcrne. 



AIR-PUMP.— A Bargain.— A Griffin Air- 



Pu-rp, quite new, double barrels 7 inches long, i§-inch bore, 55-inch 

 stri-ke, with a lo-inch ground plate. Original cost, complete, £i\i>. 

 Price 5 Guineas. P. NoLST, Cooper's Hill College, Staines. 



LIVING SPECIMENS FOR THE MICROSCOPE. 



THOMAS BOLTON, MlCROSCOPISrS and NATURALIST'S 

 STUDIO, 17. ANN STREET BIRMINGHAM. 

 RAPHIDIOPHRYS PALLIDA, 



The Freshwa:er Rhixopoda of F. Schulze figured in Archhi filK 

 viikroskop. Anatomie, vol. x. Plate xxvi. fig. i. 



Also Hoscules, some fine Mclicerta ringcns, and Volvox globator, &c. 

 Price List of Specimens on Application, with Stamped Addressed Envelope. 



Weekly Annoimcements will be made in this place of Organisms ready 

 for sale. 



LANTERN SLIDES.— Size, 3^ in. square ; 



\%s. per dozen. Skeletons, Skulls, &c., of Mammalia; Pcnd-life, In- 

 sects, &c., enlarged from Microscope. List for stamp. — JuHN 

 BURTON, F.R.M.S., 50, Portland Road, Nottingham. - 



SHEPPEY FOSSILS. 



W. H. SHRUBSOLE, Shberness-on-Sea, respectfully intimates that 

 the appeal recently made by him has been so heartily responded to, that he 

 cannot receive any more orders for " extra selected "specimens at present. 



Orders for lor. Collections of 100 "good" specimens can be executed 

 without delay. 



"NOTES ON THE GEOLOGY OF SHEPPEY" post free on appU- 

 cation. 



MINERALS, FOSSILS, AND ROCKS. 



COLLECTIONS IN CABINETS. 

 50 characteristic Specimens, \os.; 100 do., 201. ; 150 do., 301. ; 200 do., 

 4ar. ; 300 do., {,-3, ; 400 do., £,^; 500 do., £,^. Size of Specimens, about 

 2 square inches. " Guaranteed superior Collections." 

 N.B. — Carriage prepsud to any part of Great Britain. 

 Catalogues free. 

 "THE POPULAR SCIENTIFIC POCKET CABINET SERIES,"" 

 25 Specimens, 2.1. dd. 



THOMAS J. DOWNING (MINERALOGIST), 



38, WHISKIN STREET, LONDON, E.C. 



NATURAL HISTORY AGENCY. 



Collections of Insects, Bird and Mammal Skins, Eggs, Shells, Skeletons 

 &c., bought or sold on Commission. 



N.B. — Wanted Good Specimens of Native Implements of War. 

 A. H. JAMRACH, 218, East India Road, London, E. 



THIN GLASS FOR MICROSCOPIC 



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

 2J. gd. ; post free sd. extra ; Ground-edged Slips, 5^. per gross : also 

 other Mounting Materials and Objects prepared for mounting. — CH AS. 

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



GEOLOGY.— In the Preface to the Student's 



ELEMENTS of GEOLOGY, by Sir Charles Lyell, price gj., 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 

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

 from Mr. TENNANT(i49, Strand), Teacher of Mineralogy at King's 

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

 terms, in plain Mahogany Cabinets : — 



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



200 Specimens, in Cabinet, with 5 Trays S 5 ° 



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



400 Specimens, in Cabinet, with 13 Drawers ... ... 21 o o 



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



ELECTRICAL and SCIENTIFIC APPA- 



RATUS.— BEST WORKMANSHIP at LOWE.ST PRICES.— 

 Induction Coils and Electric Machines. New Electric Lamp, 2ts. 

 Bells with Automatic Switches and Batteries for Telephones, complete, 

 SOS. Microphone?, most sensitive, 3^. 6d. ; Battery for ditto, per cell, 

 zs. 6d. Electric Bells, Fire and Thief Alarms, Telephonic Materials, 

 Wires, Carbons, Batteries, &c. Catalogues one stamp.— DALE & 

 CRAMPTON, Electricians, 4, Little Britain, London, E.C. 



ENGRAVINGS AND ELECTROTYPES 



FOR SALE, at prices ranging from is. to los., in good condition, ready for 

 printing. Small, medium size, and large engravings, comprising a great 

 variety of subjects, suitable for Publishers, Advertisers, and Amateurs. 

 Specimen of any subject required sent post free on application. 



FACSIMILE OF SIGNATURE for 3^. An exact copy of any name 

 guaranteed. These signatures being engraved in bold relief, are useful for 

 Stamping Books, Circulars, and Documents, or Marking Linen, and made 

 type-high for ordinary Letterpress Printing. 



Sent post free to any address o.i receipt of 36 stamps. 



75, FLEET STREET, LONDON, E.C. 

 ARTISTIC— To Ladies and Gentlemen with 



some leisure time, desiring to supplement their incomes, an opp.-Ttiir.itr 

 isoflfered of acquiring the ART of DRAWING and ENGRAVING 

 on WOOD in a thoroughly satisfactory and perfect style. Ti'e terins 

 are moderate, and the hours can be made to suit the convenience of 

 pupils. Persons residing in the country can receive full instruct. on by 

 correspondence. For further particulars call or address Mr. J. Fj!y\NK- 

 Li.N Nash, Artist and Engraver, 75, Fleet Street, London, E.C. 



