KNOWLEDGE. 



September, 1910. 



CITY OF LONDON COLLEGE. 



ACTING IN CONJUNCTION WITH THE LONDON CHAMBER OF COMMERCE. 



WHITE ST., & ROPEMAKER ST., MOORFIELDS, E.G. 



(Near Moorgate and Liverpool Street Stations). 



Principal- SIDNEY HUMPHRIES E.A., LL.B. (Qinlab.) 



MicJiacliiias tcrtii begins Monday, Septeinhey 2bth. 



EVENING CLASSES IN SCIENCE. Well equipped 

 LABORATORIES f r Practical Work in CHEIVllSTRY, 

 BOTANY, GEOLOOY, and all branches of PHYSICS. 



Special Courses for Conjoint Board, Pharmaceutical and other examinations. 

 Classes are also held in all Commercial Subjects, in Languages, and Literature. 

 Arl Studio. All Classes are open to both sexes. 



SATURDAY CLASSES for Chemistry and Physics. 



DAY .MODERN SCHOOL. Preparation for a COiMMERCIAL or BUSINESS 

 career or the CIVIL SERVICE. 



Prospectuses, and all other information, gratis on application. 



D.-\VID S.W'AGE, Seaetary. 



XEW SESSION BECIXS U'EDNESDAV, SEPTEMBER 3S. 



BIRKBECK COLLEGE, 



BREAMS KUILDINGS. CHANCERY LANE, E.C. 

 DAY AND EVENING CLASSES. 



COURSES OF STIDV under Recoiinised Teachers of the University of 

 London for Degrees in Science, Arts and Economics. 



I A. .McK.tN^iE, Ph.D., D.Sc, M.A. ; H. Wnen 

 \ Ph.D., M.A., D.Sc; G. VV. Clouck, B.,Sc. 

 /A. Griffiths, D.Sc; D. Owen, K.A., B.Sc. ; 

 ( B.W. Clack, B.Sc ; H. R. Nettleton, B.Sc. 



H C. I. Fkaser, D.Sc. ; E. Lee. A.R.C.S. 



H. W. Unthank-, B.A., B.Sc. 



J. W. Evans, D.Sc. ; A. Morlev Davies, D.Sc. 

 . E. H. Smart. M.A. ; C. V. Coaxes, M.A. 



F. A. Wright, M..\. ; G. S. Robbrtsun, M.A. 



J. H. LoBflAN, ^I..■\. 



I. H. G. (iRATTAN. B.A. 



V. E. Kastner, B.es.L. ; J. S. Westlake, M..\. 



. 1. BiTHELL, M.A. 



. J. F. Unstead. M.A. 

 T. .Seccombe, M.A. 

 / G. ,\kmitage-Smith, M.A., D.Lit. 

 I G. C. Rankin, M.A. 

 British Constitution. G. H. J. Hirst, M.A. 



Assaying. Metallurgy. Mining. G. Patchin, A.R.S.M. 



Prosfi^-ctKS free. CaUndar :{(/, (post pec Tk/- ), from the Secretary. 



Chemistry 



Physics 



Botany 



Zoology 



Geology 



Mathematics 



Classics 



English Literature 



Language 

 French 

 German 

 Geography . - 

 History 

 Logic \ 



Economics ' 



GLEW'S 



SGINTILLOSGOPE 

 s 



(Patent) 



I HOWS a magnificent display of scintillations, 

 ' showers of spaiks. direct from the mineral 



Pitchblende, Radium, Pulouiuin, Uianiiun, Thorium, 

 or any radio-active substance, even an Incandescent 

 Gas Slantle contains suHicient Thorium to excite the 

 very sensitive screen of the Scintilloscope, which is far 

 more sensitive than the Spinthariscope. The Scintilloscope rivals the 

 most delicate Electroscope as a detector of Alpha rays. 



The eye sees an inexhaustible shower of ^lars of white light, giving a very 

 realistic idea of the ceaseless activity of these marvellous substances which are 

 producins the terrific bombardment causing this beautiful display. 



GLEWS SCINTILLOSCOPE, Superior Lens, with Extra-sensitive Radium 

 and Pitchblende Screens, giving brilliant effects, Complete, 7s. 6d., Post free, U.K. 

 Foreign Postage extra, weight 2 ounces. 



Pieces of Pitchblende mineral, ground ilat and polished, with Sensitive Screen 

 attached, for use in Sciiitilloscope or with any strong pocket magnifier, from 

 7s. 6d. each, according to size. 



•— FLAHERS, MILBORNE — >• 

 I AND McKEGHNIE, Ltd., | 



F. HARRISON GLEW (Tatentre), 156, Clapham Road, London, S.W. 



I 



Scientific Photographers & Microscopists 



Microscopic and Photomicrographic work in every branch of Nature 

 and Commerce. Preparers of Textile Fibres and Fabrics, Paper and 

 Paper-Pulps, &c., for Microscopic anj Photomicrographic Analysis. 



Lantern and Microscopical Slides in every Branch of Natural 

 Science a Speciality- 

 All Requisites for Mounting and lor Pond-life Work. 

 CATALOGUES ON APPLICATION. 



ABRAHAM FLATTERS, F.R.M.S., 



specialist in 



16, 18, & 20, CHURCH 



I 

 I 



Micro ■Technology'" to the Manchester 

 Chamber of Commerce, 



RD., 

 MANCHESTER. 



LONGSIGHT, | 



J. H. STEWARD'S TELESCOPES 



For Sportsmen, Travellers, or Home use. 



SOLE MAKER 



J.H. STEWARD 



LONDON. 



THE LORD BURY TELESCOPE supplied for many years for use at 

 home and in the Colonies. 



Size, Closed, lo inches ; extended, 31 inciies. Diiimeter of Object Glass, If inches. 



Magnifying power 25 diameters, increasing by pancratic tube to 35 diameters. 



Angular Field I '5°. Lateral P'ield at 1,000 yds.^26-2 yds. 



Will show a Flagstaff at 22 miles. I Will make out Wild Fowl at 16 miles. 



,, read name of Lightship at 9 miles. | ,, show time by Church Clock at 6 miles. 



Prices— The LORD BURY Telescope, in Bronzed Brass, weight 2 lb. *4. 4s. 

 Ditto in Light Metal „ I lb. 6 ozs. £5 1 5s. 



Including 511n^ Cases and sent post free on receipt of remittance. 



ILLUSTRATED CATALOGUE (PART I) POST EREE. 



BAROGRAPH 



For giving a continuous record of 

 atmospheric pressure. Best finish 

 and best movement. 



Size ... Si X 5 X 5|. 

 With bottle of ink and 



chaits for one year... £5 5 O 



Simple Form of Barograph £3 15 O 



IL L us TR A TED CA TALOG UE 



(PART 11) POST FREE. 



JTT CITTAJI/ A UT^ Optician to the British and 

 . m\» i9 J. Li VV Jt\.M%.MJ^ Foreign Governments, 



406, STRAND; 457, WEST STRAND, LONDON. 



WATKINS and 

 DONCASTER, 



NATURALISTS 



and Manufacturers of 



Cabinets and 

 Apparatus :: 



COI-LECTORS OF INSECTS, BIRDS' 



EGGS AND SKINS. iVIINERALS, 



PLANTS, Etc. 



SPECIAL SHOW-ROOM FOR CABINETS. 



I^.B. — For Excellence and Superiority of Calinets 

 and Apparatus references arc Permitted to distin- 

 guished Patrons, Museums, Colleges, 6r^c. 



A LARGE STOCK OF INSECTS, 

 AND BIRDS' EGGS AND SKINS. 



SPECIALITY.— Objects for Nature 

 Study f Drawing Classes, <&c. 



Birds, Mammals, etc., Preserved and Mounted by 

 Kirst-class Workmen true to Nature. 



|iV All Books and Publications on Natural 

 History supplied. 



36, Strand, London, W.C. 



(Fi\e Doors from Charing Cross). 

 S*- NEW CATALOGUE POST FREE, 



