

BIRKBECK COLLEGE, 



Breams Buildings, 



Chancery Lane, E.C.4. 



COURSES Or STUDY (Day And Evening) for Decreet of the 

 UNIVERSITY Or LONDON in the Faculties of 



SCIENCE AND ARTS (PASS AND HONOURS) 



under RECOGNISED TEACHERS of the University. 



SCIENCE.— Chemistry,' Physics, Mathematics (Pure and Applied), Botany, Zoology, Oeoloty. 



ARTS.— Latin, Greek, English, French, German, Italian, History, Geography, 



Logic, Economics, Mathematics (Pure and Applied). 



Geography Diploma and Matriculation. Evening Courses for tha Dagraes in Economica and Law*. 



POST-GRADUATE AND RESEARCH WORK. 



Sessional #>*»«/ Da ' : SCIENCE - £17 Ws. ; ARTS. £W Ws. ; 

 OSSSfonai recs \Evening: SCIENCE, ARTS, or ECONOMICS, £5 5s. 



Prosfectus free, Calendar 3d. (by post 5<f.), on application to the Secretary. 



DUSTLESS ROOMS 



On all Laboratory, Library, Museum, School, &c. , Floors and Linoleums of every description 



(A Regd. Name 



suggested by 

 FLOOR-HYGIENE.) 



FLORIGENE 



>■ 



It is IMPORTANT TO NOTE that ONE APPLICATION of " Florigene " 



ALLAVS the DuST and DIRT for a to u months, according to traffic, not 



only during each Sweeping (without sprinkling of any kind) but also throughout 



all the intervening periods — which is even of greater hygienic importance. 





Thaaa sanitary and labour-caving advantagas art NOT attained by sweeping-powders or any other method . 



Send for Particulars, Medical Kef oris, and Testimonials, to the Sole Manufacturers t 



THE "DUST-ALLAYER" CO. New Address: 4, Vernon Place, London, W.C.I. 



Contractors to the Admiralty, War Office, H.M. Office of IVarks, Colonial Governments, L.C.C., trc. 



Second-Hand at Half Prices. 

 New, at Discount Prices. 



Catalogues Free. 



State Wants. 



on SCIENTIFIC, 

 TECHNICAL, 

 EDUCATIONAL, 

 MEDICAL, and 

 ALL other subjects, 

 and for all Exams. 

 Books sent on approval. 



BOOKS BOUGHT: Best Prices Given. 



W. & G. FOYLE, 121-123 Charing Cross Rd., London, W.C.2. 



I 



Scale of Charges for Advertising in "Science Progress." 



1 Insertion. 4 Insertions. 



£3 3 - - £2 10 each. 



Whole Pace 

 Half Page 

 Quarter Page - 

 Eighth Page 



All applications for space to be made to 



Mr. JOHN MURRAY, 50a, Albemarlt Street, W.I, 



or to 



Mr. H. A. COLLINS, 32, Blrdhurtt Road, Croydon 



( H) 



