Calendar: 1931-1932 Page 496

ΗορκίΝ Williams Ltd CHEMICAL MANUFACTURERS Chemicals for Analysis Our Chemicals comply with the specifications which we publish in Analytical Reagents Standards and Tests post free This volume deals with 182 substances for general analysis and determination of hydrogen ion concentration Specify "A when ordering reagents from your dealer 16-17 CROSS STREET HATTON GARDEN Foyles can supply all your book requirements NEW or SECOND-HAND Immense stock of 000 000 volumes on every conceivable subject- classified into twenty-five depart- ments each of which is managed by an expert and issues its own Catalogue Call and at leisure look over the stock in any of the Departments If unable to do eo write mentioning requirements and interests suitable catalogues will then be Bent post free BOOKS PURCHASED FOYLES FOR BOOKS 119-125 Charing Cross Road London Gerrard 9310 lines Are you taking advantage of the Text-Book Supply Scheme arranged for your benefit by the National Union of Stud- ents If you have not received particulars apply to your local Represent- ative or to and FOYLE Ltd 119-125 Charing Cross Road London or THE SECRETARY The National Union of Students Ends- leigh Street London IS