-■— « -w -»- -m V ..r-s. --- -w _ _ Your own sketches, 



17 T T IVf Q T T "n 17 C P^°*°^' diagrams, 

 X J. 1 ^ IT J. O 1 -i X M-M mIa O etc. of mixed shapes 



and sizes converted 



A simplified system of lantern projection into film slides at 



the rate of id. per 

 picture. Filmslide Lanterns — portable, simple, self-contained. Particularly 

 useful for travelling lecturers and demonstrators. Price, £4 10 O tO £8. 



Particulars and Catalogue from 



VISUAL INFORMATION SERVICE 



The Original British Filmslide Producers 

 168a BATTERSEA BRIDGE ROAD, LONDON, S.W.ll 



I 



'otc/i the thoughts you 

 want to record before 

 they fade away ! 



I 



Full particulars, post free, from : — 



SPEEDWRITING, LTD. 



51 Tothill Street, Westminster, 

 LONDON, S.W.I. 



is particularly well adapted to enable you 

 to do this without conscious effort. 

 A few hours interesting study, and you can 

 write at the rate of one hundred words a 

 minute with the letters you have always 

 used. Learn a few simple rules in spare 

 moments and begin using the system at 

 once. Notes are always accurate and 

 can be read with ease, even years after 

 they have been made. 



HEFFER'S BOOKSHOP 



for 



SCIENTIFIC BOOKS 



We welcome correspond- 

 ence on all matters con- 

 cerning the buying and 

 selling of Scientific Books 

 and Periodicals, of which 

 we hold a comprehensive 

 stock 



Catalogues are issued at 

 frequent intervals — are 

 you on our mailing list ? 



RECENTLY ISSUED : 



CATALOGUE 450, 



SCIENTIFIC BOOKS 

 AND PERIODICALS 



W. HEFFER & SONS, 



LTD., 

 CAMBRIDGE, ENGLAND 



A HISTORY OF 



DARWIN'S PARISH 



DOWNE, KENT 



By 



Dr. O. J. R. HOWARTH 



Secretary of the British AssociatiOQ 

 AND 



Mrs. HOWARTH 



With a Foreword by 

 Sir ARTHUR KEITH, F.R.S. 



Published by 



Russell & Co., Southern Counties, 

 Ltd., Southampton 



To be obtained of all booksellers, or 

 from Down House 



PRICE IS. 6d. 

 postage 2d. 



