Sept. II, 1879] 



NATURE 



clix 



GEORGE HENRY LEWES 

 STUDENTSHIP. 



This Studentship has keen fcunded, in memory of Mr. George Henry 

 Lewes, for the purpose of enabling the holder for the time being, to devote 

 himself wholly to the prosecution of original research in physiology. The 

 Studentship, the value of which is ^hghtly under 200/. per annum paid 

 quarterly in advance, is tenable fjr three years, during which time the 

 student is reqi«ir«d to carry on, under the guidance of a Director, physio- 

 logical investigations to the complete exclusion of al! other professional 

 occupations. No persom will be elected as a "George Henry Lewes 

 Student" who does not satisfy the Trustees and Director first as to the 

 promise of luccess in physiological inquiry, and second as to the, need of 

 pecuniary assistance. Otherwise all persons of both sexes are eligible. 

 Applications, together with such information concerning ability and circum- 

 stances, as the Candidate may think proper, should be sent to the present 

 Director, Dr. Michael Foster, New Museums, Cambridge, not later than 

 October 15, 1879. The appointment will be made and duly advertised as 

 soon as possible after that date. 



THE MIDDLESEX HOSPITAL. 



The WINTER SESSION will; open on WEDNESDAY, October ist, 

 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 prepar.ng for the University of London, 

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



Two Entrance Scholarships of the annual value of ^^25 and ;^2o, tenable 

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



Further informalfcn may be obtained from the Dean or the Resident 

 Medical Ofliccr at the Hospital. 



ANDREW CLARK, Dean. 



FOR 



«'HALL MARK" 

 THERMOMETERS. 



The Kew Committee o£ 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., pest free on application. 



ON the CAUSES which PROPAGATE, 



DISTRIBUTE, and MODIFY INSECTS.— This book will be illus- 

 trated, and includes the Author's researches on Music and Heannjj. 

 Price to Subscribers. 71. id, ; names solicited.— A. H. SWINTON, 

 Bintield House, Guildford. 



The BELL TELEPHONE, for communi- 

 cating any distance up to 2co miles, as used by the German Government. 

 Per pair complete, carriage free, _2&r. cash ; small size for short dis- 

 distanccs, with 60 feet of wire, carriage free, 12J. Highest testimonials. 

 On approval, if required. — AUGUSTE KIELL, Agent, no, London 

 Wall, E.C. 



ASTRONOMICAL TELESCOPES.— 



CALVER'S REFLECTING TELESCOPES of the highest excellence, 

 from sj-mch to 3«-inch aperture. sl-inch, with equatorial motion, 

 j£i5 15J. ; 6-inch Eiluatorial, complete ; Photo, with Calver's " Hints 

 on Silvered Class Reflecting Telescopes," 9 stamps.— G. CALVER. 

 F.R.AS., Hill House, Widford, Chelmsford. 



FuR SALE. — A very fine isj-inch Equatorial, with Clock. 



SHEPPEY FOSSILS. 



W. H. SHRUBSOLE, F.G.S., Shbkenkss-on-Sfa, h.ivi'ng a large 

 quantity of the above on hand, olTers. FOR A FEW WEEKS ONLY, 

 100 good Specimens, correctly named, for 51. ; 100 assorted Specimens, un- 

 named, 2X. Not less than 50 sent at these rates. 



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 

 offers for SALE several of his extensive COLLECTIONS of Minerals, 

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

 Establishments, Provincial or Colonial Museums, or for the Private 

 Study of any Scientific Person wishing to become acquainted with the 

 above-mentioned Sciences. From ^1,000 to 5,o«o Guineas. Students' 

 Collections at 3, 5, 10, 2*, to 50 Guineas. 



THE "HANSA," 



Published since 1864, in Hamburg, is the only independent profesiianal 

 paper in Germany, dedicated exclusively to Maritime Objects. Essays 

 Critiques, Reviews, Reports, AdvertisemenU. Strict eye kept upon the deve' 

 lopment of Maritime Affairs in every respect. Every second Sunday one 

 Number in 4to at Iea.st; frequent supplements and drawings. Subscription 

 at any time : preceding numbers of the year furnished subsequently. Price 

 12J. for twelve months. Advertisements ^d. a line, widely spread by this 

 paper; considerable abatement for 3, 6, ij montlis' insertion. Busines> 

 Omce : Aug. Meyer and Dieckmann, Hamhure, AllerwalL a8, Edited by 

 W. V. FaKEtiKN, M.R., Hambure, Alexander Street, S. ^ 



MINERALOGY AND GEOLOGY. 



COLLECTIONS TO ILLUSTRATE THE ABOVE SCIENCES 

 FROM 4r. ' 



SINGLE SPECIMENS FROM y). 



AUGITE, ENSTATITE, GLAUCODOT, NEOTOKITE. CHON- 

 DRODITE, VERY FINE ; NORWAY. 



PHENACITE, TOPAZ, ALEXANDRITE, BERYL GROSSULAR 

 SIBERIA. 



A SMALL QUANTITY OF THORITE WITH ORANGITE. 



BLOWPIPE CASES, HAMMERS AND CHISELS, AND CRYS- 

 TAL HOLDERS. 



PBIVATE LESSONS AND EVENING CLASSES. 



Ca ia Io£7fesfree. 



SAMUEL HENSON, 

 277 (Late Ii3rt), STRAND, LONDON, W.C. 



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- 

 Tcrsity Matriculation, ist and and B.Sc, Preliminary Scientific M.B.» 

 Botany, Physiology, Chemistry. All the work practical. 



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 Ncwingt^n, 

 London. 



Several Skins of Elliott's Pheasant on hand. 



To the PRINCIPALS of SCHOOLS.— A 



GRADUATE in Honours (Lond'-n) gives Lessons in Preparation for 

 Examinations in Mathematics, Physics, Chemistry, — Address X.Y.Z., 

 Nature OfTice. 



MINERALS, ROCKS, AND FOSSILS. 



COLLECTIONS IN CABINETS. 



Two Hundred Specimens, 4or. ; 150 do., 30^. ; 100 do., aor. ; 50 do., 10*. 

 Siie of Specimens, 2 square inches. Naming and Localities guaranteed. 



Superior Cabinets fitted with Card-Tr.-iys and Catalogue included. 



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

 224 Specimens. 21. td. each Cabinet, free delivery, 4,d. (See Natuke, 

 March 13, No. 489, page 447.) 



The Collector's Field Apparatus complete, 2if. Hammer-holder and 

 Waist-strap, price 2j. Collecting-bag (figured and described), price 41. 



THOMAS J. DOWNING, Geologist, &c., 



38, WHISKIN STREET, LONDON, E.C. 

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



BRITISH ASSOCIATION, 1879. 



CASTLETON, NEAR SHEFFIELD. 



The district of which Castleton is the centre is one 06 the most romantic 

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

 tain,"_Mam_Tor, the Pass of the Winnatts, ajid many other glens, caverns, 

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

 John Tym (who is Assistant Curator of the Castleton Museum, the property 

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

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

 and has also a most extensive collection of geological specimens 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 Special Collections !• illustrate the various Text-books, ia 

 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 N.w and Second-hand Books ol 



JAMES R. GREGORY, 



MUSEUM OF GEOLOGV, 



88, CHARLOTTE STREET, FITZROY SQUARE. 

 ELECTRICAL and SCIENTIFIC APPA- 



RATUS. — Microphones of every form, Hughes' Induction Balance, 

 Electric Bells, Indicators, Fire and Thief-Alarms, New Constant 

 Batteries, Induction-Coils and Frictional Machines, Magnets, Insulated 

 Wires, Screws, and all materials. Liberal Terms to Schools and 

 Science Teachers. Apparatus on hire. Complete Electric Catalogue, 

 I stamps. Optical and Pilot graphic List, i stamp.— DALE and 

 CRAMPTON, Manufactur.ng Electricians, 4, Little Britain, LondoD, 

 Cf.C. 



DIAMONDS IN MATRIX. 



R. C. NOCKOLD, Diamond and Oriental Stone Cutter and Dealer, haf 

 for ».ale specimens of the above; alo Cut Precious Stones in all Colours. 

 12, FRITH STREET, SOHO, W. 



