cxxu 



NATURE 



\Atigust 14, 1879 



NOTICE. 



BRITISH ASSOCIATION FOR THE 

 ADVANCEMENT OF SCIENCE. 



"NATURE" 



FOR AUGUST 21 



And the following Numbers will contain FULL REPORTS of 



THE PRESIDENT'S ADDRESS, 



And of the ADDRESSES and PROCEEDINGS in the 



different Sections. 



NOTICE TO ADVERTISERS. 



Advertisements intended for the above number should be 

 sent to the Publishers by 



TUESDAY NEXT. 

 Office: 29, BEDFORD STREET, STRAND, W.C. 



MICROSCOPIC OBJECTS 



Of superlative pertection, illustrating Histology and eyery branch ef Micro- 

 scopy. Catalogue post free and gratis on appUcatitn. 



PARIS UNIVERSAL EXHIBITION, 1878. 



Pri%t Medal awarded for Excellence, Variety, &'c. 

 EDMUND WHEELER, 48N, TolUnEton Ro«d, Holloway, London, N. 



PHYSICAL SOCIETY.— The Reprint of 



Sir Charles Wheatstone's SCIENTIFIC PAPERS.— Any member 

 who, having paid his subscription for the current year, has not yet 

 received his Cf-py, is requested to communicate with the Treasurer, Dr. 

 Atkinson, Poriesbery Hill, Camberley, Surrey. 

 »% The price of this volume to non-members is 15^., and it may be had 

 through Messrs. Taylor and Francis, Red Lion Court, E.C. 



"HALL MARK" 

 FOR THERMOMETERS. 



The Kew Committee of the Royal Society hereby give Notice that after 

 thii 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, SuperlntendwDt. 

 Kew Observatory, December 13, 1878. 

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



BRITISH ASSOCIATION FOR THE 

 ADVANCEMENT OF SCIENCE, 



22, ALBEMARLE STREET, LONDON, W. 



SHEFFIELD, August 20-27. 



President-Klect. 



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

 Prcs. L.S. 

 The JOURNAL, PRESIDENT'S ADDRESS, andother Printed Papers 

 issued by the Association during the Annual Meeting will be forwarded 

 daily by post to Members and others on application and prepayment of 

 ■2S. i>d. to the Clerk of the Association, Mr. H. C. Stewakdson, Reception 

 Room, Sheffield, on or before the first day of the Meeting. 



ST. PAUl-'S SCHOOL.—In the course of the 



next few weeks a SCI ENCE MASTER will be appointed at tliis School 

 to teach CHEMISTRY and CHEMICAL PHYSICS. Salary, ;^3od 

 a year. The Oenileman who accepts the Office will be expected to be 

 in attendance at the School during the ordinary School Hours, i.e.. 

 Twenty-nine Hours a Week. — Testimonials to be sent to ihe High 

 Master, St. Paul's School, St. Paul's Churchyard, London, E.C. 



CIVIL SKRVICE COMMISSION.— Open 



COMPETITIONS for Three Situations as Junior Assistant (Art 

 Branch), and for One Situation as Junior Assistant (Science Branch) in 

 the South Kensington Museum, will be held in London on TUESDAY, 

 September g, and following days. Preliniinary Examinations on 

 August 26.— for Regulations and Forms of Application, address the 

 Secretary, London, S.W. 



BRITISH ASSOCIATION IN SHEF- 

 FIELD.— best REPORTS in T>ie Sluffield Independent. Posted 

 daily for \s. W. the Series. 



LIVING SPECIMENS FOR THE MICROSCOPE. 



THOMAS BOLTON. MICROSCOPIST'S and NATURALISrS 

 STUDIO. 17, ANN STREET. BIRMINGHAM. 



T. B. has last week posted to his subscribers ancther supposed new Ento- 

 mostracon, figured and described by Mr. Forrest as Daphnta Bairdii. That 

 sent out the previous week is identified as Leptodora hyalina of Lilljeborg, 

 and new to this country. He has also sent out Cristateila mucedo, Stephano- 

 ceros Eichorniif Volvox globator(\.n the Golden or resting stage) PeHdinititn 

 iferatiutn T) contutum, &c. 



Weekly ann*un«ements will be made in this placa of organisms T. B. 

 is supplying. 



Specimen Tube, One Shilling, post-free, 



Ttueniy-six Tuhes in. eourse cf Six Months /^r Suhscripiitn cf £z is. 



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



Portfolio of Drawi.ngs, One Shilling. 



ROYAL COLLEGE OF SCIENCE FOR 



IRELAND, 



STEPHEN'S GREEN, DUBLIN. 



SCIENTIFIC AND TECHNICAL EDUCATION. 



SESSION 1879-80. 



This College supplies a complete Course of Instruction in Science, appli- 

 cable to the Industrial Arts, especially those which may be claiised broadly 

 under the heads of CHEMICAL MANUFACTUKES, MINING, and 

 ENGINEERING. 



A Diploma of Associate of the College is granted at the end of the Three 

 Years' Course, 



There are Four Royal Scholarships of the value of ^^50 each yearly, with 

 free education, including Laboratory Instruction, tenable for two years. 

 Two become vacant each year. They are given to Students who havt^ been 

 a year in the College. 



The Fees are £2 for each Course, or £ 10 ^^^ all the Courses of each year, 

 with the exception of Laboratory Practice. 



Chemistry (Theoretical and Practical), Metallurgy, &c.— Prof. 

 HARTLEY, F.CS. 



Mathematics, Mechanics, and Mechanism. — Prof. HENNLSSY, 

 F.R.S, 



Descriptive Geometry, Drawing, Engineering, and Surveying. — 

 Prof. PIGOT, C.E., M.R.I.A. 



Experimental Physics (Theoretical and Practical).— Prof. 

 BARRETT, F.R.S.E., F.CS. 



Mining and Mineralogy.— Prof. O'REILLY, C.E., M.R,I.A. 



Botany.— Prof. M'NAB, M.D., F.L S. 



Zoology.— Prof. BRIDGE, B.A. 



Geology.— Prof. HULL, M.A., F.R.S. 



Palaeontology.- Mr. BAILY, F.G.S. 



The Chemical and Physical Laboratories and Drawing School are open 

 daily for Practical Instruction. 



Fee for Chemical Laboratory', £2 per Month, or;^i3 for Session, Fee for 

 Physical Laborator>', jCi per Month, or jC6 for Session. Fee for Drawing 

 School, ^3 for Session. 



The SESSION commences on MONDAY, October 6th. 



Programmes may be obtained on application at the College, or by letter ci 

 post-card, addressed to the Secretary, Royal College of Science, Ste[ hen's 

 Green, Dublin. 



FREDERICK J. SIDNEY, LL.D., Secretary. 



UNIVERSITY COLLEGE, LONDOnT 



SESSION 1S79-80. 



The SESSION of the Faculties of Medicine, of Arts and Laws, imd cf 

 Science, will begin on OCTOBER ist. Instruction is provided for Women 

 in all subjects taught in the Faculties of Arts and Laws and of Sciencs. 



The School for Boys between the ages of Seven and Sixteen will reopen 

 on September 23rd. 



Prospectuses and Copies of the Regulations relating to the Entrance and 

 other Exhibitions, Scholarships, &c. (value about ;£2,ooo), may be obtained 

 from the College, Gower Street, W.C. 



The Examinations for the Entrance Exhibitions will be held on the 25th 

 and 26th of September. 



The College is close to the Gower Street Station of the Metrojalitan 

 Railway. 



TALFOURD ELY, M.A., SecreUry. 



A WHITWORTH SCHOLAR, WITH 



Teacher's Certificates in Twelve Subjects; Science and Art Department 

 Honours in Six Subjects, desires an Appointment as LECi'URER in 

 Mechanical Sciences in connection with the Department Service during 

 coming Session given gratuitously.— Address W.S., Nature Office, 29, 

 Bedford Street, Strand, W.C. 



FOR SAL E.— 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 Ncwingion^ 

 London. 



Several Skins of ElUott's Pheasant on hand. 



royal polytechnic— CLASSES for 



the preparation ^f Students for University Examinations, under the 

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

 versity Matriculation, ist and 2nd B.Sc, PreUminary Scientific M.B., 

 BoUny, Physiology, (^emistry. All the work practical. 



