cxc 



NATURE 



[April I y, 1879 



WANTED, Clean Copies of NATURE, N^o. 472, 

 for November 14, 1878. Address — Office of 

 NATURE, 29, Bedford Street, Strand. 



MICROSCOPIC OBJECTS 



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

 scopy. Catalogue post free and gratis on application. 



PARIS UNIVERSAL EXHIBITION, 1878. 



Prize Medal awarded for Excellence, Variety, <5rv. 

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



UNIVERSITY OF DURHAM 

 COLLEGE OF PHYSICAL SCIENCE, 



NEWCASTLE-UPON-TYNE. 



The Council of this College will receive applications for the Professorship 

 of Geology, Salary ;£ 300 and Two-Thirds of the Student's Fees. 



Candidates for the office are invited to apply (with Testimonials) to Theo. 

 Wood Bunnikg, Secretary to the College of Physical Science, Newcastle- 

 upon-Tyne, before MONDAY, the 28th of APRIL, from whom full par- 

 ticulars as to duties, &c., may be obtained. 



UNIVERSITY COLLEGE, LONDON. 



BOTANY. 



A PRACTICAL CLASS, under the superintendence of Mr. F. O. Bower, 

 will meet in the Zootomical Gallery on Tuesdaj's, Wednesdays, Thursdays, 

 and Fridays, from 2 to 5, commencing on the ist day of May. 



N.B. — This Course is designed to cover the requirements of Candidates 

 for the Second B.Sc. Examination of the London University so far as 

 practical laboratory work is concerned. 



Fee, ;f 4 4f. (exclusive of a small sum not exceeding 5J. for materials). 



TALFOURD ELY, M.A., Secretary. 



SUNDAY LECTURE SOCIETY.— LEC- 



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

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

 April 20.— Andrew Wilson, Esq., Ph.D., F.R.S.E., Lecturer on 

 Zoology and Comparative Anatomy in the Edinburgh Medical School, 

 &c., on " The Relation of Science to Religion." — First Lecture: " The 

 General Attitude of Scientific Fact to Religious Belief." — Members' 

 Annual Subscription, £\. Payment at the Door — One Peimy, Sixpence, 

 and (reserved seats) One Shilling.^ _., 



ROYAL COLLEGE OF SURGEONS IN 

 IRELAND. 



NOTICE is Hereby Given, that on the ist day of JUNE next the Coun- 

 .cil will proceed to elect a CURATOR of the Museum at a salary of ^■i-cfl 

 a year. 



Candidates will be required to lodge at the College, on or before the 31st 

 of May next. Preparations in Human and Comparative Anatomy, made by 

 themselves, as prescribed in the regulations. 



Information respecting the duties of the office may be obtained by appli- 

 cation to the Registrar at the College. 



By order of Council, 



JOHN BRENNAN, Registrar. 

 April ist, 1879. 



TUITION for the UNIVERSITIES, CIVIL 



Service, and Army. — Pupils prepared f( r the above by a Tutor in South 

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

 South Kensington. 



LIBRARY OF HARVARD UNIVERSITY, 

 CAMBRIDGE, MASS., U.S.A. 



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

 Libraries (Astronomical Observatory, Botanic Garden, Bussey Institution, 

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

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

 LudgateHill, London. 



JUSTIN WINSOR, Librarian. 



WITHERNDEN SCHOOL, CATERHAM 



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

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



SOUTH LONDON SCHOOL OF 

 PHARMACY. 



TO STUDENTS.— Dr. MUTER will commence a Course of 12 Lectures 

 and 4 Tutorial Evenings on "The Elements of Light, Heat, and Electri- 

 city," fully illustrated by Experiments, on 22nd April, 1879, at 7 P.M. 

 Tickets, £,1 23. each, to be had of Mr. Baxter, Secretary, at the Office of 

 the School, Kennington Cross, S.E. _ 



LIVING SPECIMENS FOR THE MICROSCOPE. 



THOMAS BOLTON. MICROSCOPIST'S and NATURALISTS 

 STUDIO, 17, ANN STREET, BIRMINGHAM. 



T. B. has last week posted to his subscribers Embryo of the Fre.?h-water 

 Mussel, Anodonta cygncea, and the previous week the rotifers Synchata 

 niordax and Atiuraa sguanmia, in each case illustrated with drawings 

 and descriptions. He has also distributed Cristatella, Plumatella, Freden- 

 cella, Stephanoceros, Floscularia, Melicerta, Hydatina, Rhynops, Euglena, 

 Pandorina, Nitella, Desmids, Frog Spawn, &c. 



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

 is supplying. 



Price List of Specimens on application, with Stamped Addressed 

 Envelope. 



A friend has offered T. B. a constant supply of mouated and unmounted 

 specimens of all kinds of Parasites of Man and Animals (Entozoa and 

 Ectozoa), also sections of all Mammalian organs. 



A GENTLEMAN who is going on a Dredg^ 



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

 rahst 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. 

 Sizeville House, Leiston, Suffolk. 



A GRADUATE in Natural Science Honours 



(Oxon.) prepares Gentlemen for Examinations in Chemistry, Physics, 

 and Elementary Mathematics. — Address Alpha, care of Publisher o£ 

 Nature, 29, Bedford Street, Strand. 



FOR SALE.-A COMPACT, GENERAL 



COLLECTION of FOSSILS, the property of a Gentleman who, 

 through adverse circumstances connected with ill-health, is under the 

 necessity of parting with his geological treasures. It includes about 

 500 specimens, representing, say, 250 Species. Price £6. 



W. H. SHRUBSOLE, F.G.S., SHEERNESS-ON-SEA, in the hope of 

 thereby helping a friend, will be glad to furnish full particulars. 



LABORATORY, 38, GRACECHURCH STREET, LONDON, EC 



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 erf 

 the Kingdom. 



DUNHEVED COLLEGE (LIMITED), 



LAUNCESTON, CORNWALL. 

 Seven hours from London. Separate Bedroo.ms. Systematic Teaching 

 in Science, Foreign Languages, and University Courses. 

 Calendar post free from 



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



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. 



HOW to MAKE a TELESCOPE, a MICRO- 



SCOPE, and a MAGIC LANTERN. How to TAKE a PHOTO- 

 GRAPH and PRINT aCARTE, see ILLUSTRATED CATALOGUE, 

 now ready, 3 stamps. Containing full direction for above, and how to 

 TRANSFER LANTERN SLIDES. 



J. LANCASTER & SON, Bull Street, Birmingham. 



The LANCASTER ELECTRIC LAMP, de- 

 vised by W. J. LANCASTER, F.C.S., F.R.A.S., &c., in three sizes. 

 No. I, to bum 3 hours, £2 2S. ; No. 2, to burn 6 hours, ^^^ 3s. ; largest 

 size, £5 5s. Set of 20 Quart Bunsen's Cells, £4 4s. Model Electric 

 Lamp and 10 Cells, £2 12s . 6d. _____^ 



ELECTRICAL & SCIENTIFIC APPARA- 



TUS for AMATEURS and the TRADE.— Microphones of e%ery fon*, 

 from IS. 6d. New cheap Electric Lamps and Batteries. Induction 

 Coils and Frictional Machines are specialties. Electrical Bells, Fire 

 and "Thief Alarms, and Automatic Switch-boards. Magnets, Covered 

 Wires, Screws, and all Materials. Apparatus for Science Teachers. 

 Illustrated Catalogue, one stamp. Repairs and Alterations. Appara- 

 tus made to shetch.— DALE & CRAMPTON, Manufacturing Elec- 

 tricians, 4, Littlp Britain, E.C. 



HORNE'S POMPEIAN DECORATIONS. 

 ROBERT HORNE, 



HOUSE DECORATOR and PAPER-HANGING 



MANUFACTURER, 



41, GRACECHURCH STREET, LONDON, E.C. 



Py Special Appointment to His Majesty the King of Italy. 



