XXXIV 



NATURE 



[May 29, 1879 



WANTED, Clean Copies of NATURE, No. 472, 

 for No^'ember 14, 1878. Address — Office of 

 NATURE, 29, Bedford Street, Strand. 



MICROSCOPIC OBJECTS 



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

 scopy. Catalogue post free and gratis on application. 



PARIS UNIVERSAL EXHIBITION, 1878. 



Priu Medal awarded for Excellence, Variety, &'c. 

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



UNIVERSITY OF LONDON. 



NOTICE is Hereby Given, tbat the next Half-yearly Examination Kt 

 MATRICULATION in this University will commence on MONDAY, the 

 30th o£ June, 1879. In addition to the Metropolitan Examination, Provin- 

 cial Examinations will be held at Owens College, Manchester; Queen's 

 College, Liverpool ; Queen's College, Birimmgham ; St. Cuthbert's College, 

 Ushaw; Stonyhurst College ; St. Patrick's College, Carlow ; St. Stanislaus 

 College, Tullamore ; University College, Bristol; ^nA {Jor Ladies only) sx 

 the Ladies' College, Cheltenham. 



Every Candidate is required to transmit his Certificate of Age to the 

 Registrar (University of London, Burlington Gardens, London, W.) at least 

 Fourteen Days before the commencement of the Examination. 



WILLIAM B. CARPENTER, M.D., Registrar. 

 May aist, 1879. 



BRITISH ASSOCIATION FOR THE 

 ADVANCEMENT OF SCIENCE, 



22, ALBEMARLE STREET, W. 



The NEXT ANNUAL GENERAL MEETING will be held at 

 SHEFFIELD, commencing on WEDN ESDAY, August 20. 



President-Elect. 



Prof. G. J. ALLMAN, M.D., LL.D.. F.R.S.L. and E., M.R.I.A. 

 Pres. L.S. 



NOTICE to CONTRIBUTORS of MEMOIRS.— Authors are reminded 

 that, under an arrangement dating from 1871, the acceptance of Memoirs, 

 and the days on which they are to be read, are now, as far as possible, de- 

 termined by Organising Committees for the several Sections /'i/ort? the begin- 

 ning of the Meeting. It has therefore become necessary, in order to give 

 an opportunity to the Committees of doing justice to the several communica- 

 tions, that each Author should prepare beforehand an Abstract of his 

 Memoir, of a length suitable f t insertion in the published Transactions of 

 the Association, and the Council request that he will send it, together with 

 the original Memoir, by book-post, on or before July 15, addressed thus : — 

 *' General Secretaries, British Association, 22, Albemarle Street, London, 

 W. For Section " Authors who comply wi.h this re- 

 quest, and whose Papers are accepted, will be furnished before the Meeting 

 with printed copies of their Reports or Abstracts. If it should be inconve- 

 nient to the Author that his Paper should be read on any particular days, he 

 is requested to send information thereof to the Secretaries in a separate 

 note. 



No Report, Paper, or Abstract can be inserted in the Report of the Asso- 

 ciation unless it is in the Assistant-Secretary's hands before the conclusion 

 of the Meeting. 



J. E. H. GORDON, Assistanl-Secretar>'. 



VICTORIA (PHILOSOPHICAL) INSTI- 

 TUTE.— The annual MEETING will be held at 8 o'clock, June 

 i6th, at the House of the Society of Arts (by kind permission of that 

 Society). The President in the Chair. 

 The Address will be delivered by Dr. Radcliffe. . , ■ 



*.* Those wishing to join as Members or Assoc ates should send in their 

 names as soon as possible before the Annual Meeting, so as to insure the 

 special privileges accorded to those joining this year. 

 Particulars sent on application. 



F. PETRIE, Secretary to the Council. 



House of the Institute, 7, Adelphi Terrace, 

 London, W.C. 



SOCIETY for the TOTAL ABOLITION 

 and UTTER SUPPRESSION of VIVI- 

 SECTION. 



The FOURTH ANNUAL MEETING of the Society will be held at 

 Willis's Rooms, King Street, St. James's, London, W., on SATURDAY, 

 the 31st May, 1879, at Three o'clock P.M., Sir Patrick Colquhoun, Q.C, 

 LL.D., in the Chair, to receive the Report of Proceedings, Accounts, and to 

 transact other business. Physiologists are invited to be present at 4 clock, 

 and state their views. 



GEORGE R. JESSE, Honorary Secretary and Treasurer. 



Henbury, near Macclesfield, Cheshire. 



DUNHEVED COLLEGE (LIMITED), 



LAUNCESTON, CORNWALL. 

 SeTeo hours from London. Separate Bedrooms. Systematic Teaching 

 in Science, Foreign Languages, and University Courses. 

 Calendar post free from 



The Principal-BENJAMIN RALPH, IX.B. Dub. 



LIVING SPECIMENS FOR THE MICRnSCOPE. 



THOMAS BOLTON, MICROSCOPIST'S and NATURALIST'S 

 STUDIO, 17, ANN STREET, BIRMINGHAM. 



T. B. has last week posted to his subscribers the fresh-water Polyzoa. 

 Fredericella sultana^ with drawing (after Allman). He hasalso distributed 

 Volvox glohator, Pandorina tnontm, Clo^tcrium, Prrtococcus, Niieila, 

 Chara, Vallisneria. Amoebae, TraduHus oviintt Vorticellidae, Hydrae, Cris- 

 tatella, Paludicella, Stephanoccros, Meliceria tubicolaria, Hydatina, Philo- 

 dina, Brackionus pain, &c. 



Weekly announce me nts will be made in this place of organisms T. B. 

 is supplying. 



Specimen Tube, One Shilling, post-free, 



Tiventy-six Tubes in course of Six Months for Subscription of £i u. 

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



OWENS COLLEGE, MANCHESTER. 



The Senate invites Applications for the Office of DEMONSTRATOR 

 and ASSISTANT-LECTURER in ANATOMY in the College. The 

 Salary is ^£150 per annum. The Demonstrator will be required to enter 

 upon his duties on the 1st October next, and to devote his time entirely to 

 them. 



Further information may be obtained from the Dean of the Medical School. 



Applications and Tetttmonials, under cover to the Registrar, will be 

 received until the 13th June. 



J. HOLME NICHOLSON, Registrar. 



OWENS COLLEGE, MANCHESTER. 



The Council propose to appoint a separate Professor of Zoology. Candi- 

 dates are invited to send in Applications and Tesiimcnials under cover to the 

 Registrar not later than the 28th June. 



Details as to the duties and emoluments of the office may be obtained :n 

 application to the Principal, Dr. Greenwood. 



J. HOLME NICHOLSON, Registrar. 



A GENTLEMAN who is going on a Dredg- 



ing Cruise round the British Isles would be glad to meet another Natu- 

 ralist who would be willing to accompany him during the whole or part 

 of the voyage.— For further particulars apply to C. P. Ogilvie, F.L.S. 

 Siieyille House, Leiston, Suffolk. 



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, Tst and 2nd B. So., Preliminary Scientific M.B., 

 Botany, Physiology, Chemistry. All the work practical. 



TUITION for the UNIVERSITIES, CIVIL 



Service, and Army.— Pupils prepared fcr the above by a Tutor in Somh 

 Kensincton. Address— Tutor, Lamley's Library, ITiurloe Place, 

 South Kensington. 



LIBRARY OF HARVARD UNIVERSITY, 

 CAMBRIDGE, MASS., U.S.A. 



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

 Libraries (A!=tronoHiical Obsenatory, Botanic Garden, Bussey Institution, 

 Divinity School, Law School, Museum of Comparativ* Zoology, Scientific 

 School), may bt sent to the Agents, Messrs. TrCbnkr & C»., 57 »nd 59, 

 Ludaate Hill, London. 



JUSTIN WINSOR. Ubrarian. 



GEOLOGY.— In the Preface to the Student's 



ELEMENTS of GEOLOGY, by Sir Charles Lyell, price 9*., he says : 

 — " As it is impossible to enable the reader to recognise rocl^ 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 

 Cellege, London." These Collections are supplied on the following 

 terms, in plain Mahogany Cabinets :— 



100 Specimens, in Cabinet, with 3 Trays «. » — ;f a to 

 200 Specimens, in Cabinet, with 5 Trays ».».». 5 5 o 

 300 Specimens, in Cabinet, with 9 Drawers «. » xo 10 o 

 400 Specimens, in Cabinet, with 13 Drawers «. ... ai o o 

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



MINERALOGY AND GEOLOGY. 



FINE AND INTERESTING GENICULATED CRYSTALS OF 



CASSITERITE, BRITTANY. 

 CUPRITES, NATIVE COPPERS, AND CHALCOTRICHITES, 



SERVIA. 

 MOLYBDATES OF LEAD, UTAH. 

 SILVER ORES FROM THE "EMMA" MINE. 

 CALCITES, CUMBERLAND. CERUSITES, UTAH. 

 TABLE OF HARDNESS, m. id 



PRIVATE LESSONS AND EVENING CLASSES. 



SAMUEL HENSON, 

 277 (Lateiiza), STRAND, LONDON, W.C. 



