HARD WICKE'S SCIENCE- G OS SIP. 



Ixi 



W. I. CHADWICK'S 



SIMPLE FOUM OF 



Samples of Work done by this Apparatus 

 sent for inspection by paying postage 6d. 

 Catalogue and Pamphlet 2 Stamps. 



| Consisting of a long BeUows-t>ody Camera 

 1 on Sliding Baseboard, with fine Focussing 

 .; Adjustments, one Dark Slide, Objective 

 Holder, and Slide Stage with Screw 

 Adjustments, £5. 



W. I. CHAD WICK, 2, St. Mary's Street, Manchester. 



This is the most rapid and convenient Table published, for finding the time required to expose a Dry Plate in the Camera. 



"A very neat and conveniently arranged automatic card exposure table, which shows at a glance the exposures to 

 be given under different conditions of light and stops. It is both handy and convenient." — British journal of 

 Ph otography . 



" Of decidedly novel construction, and upon trial we found it a satisfactory guide to this most difficult problem- 

 Fits easily into one's pocket." — Amateur Photographer. 



" One of the neatest things in exposure tables we have seen for a long time." — Photography. 



Price Is., or in Case, is. 3dL. 



SOLE AGENT— 



JOHN BROWNING, 63, STRAND, LONDON, W.C. 



Illustrated Catalogue of Photographic Apparatus, -post-free. 



BOOKS BY DR. ANDREW WILSON, F.R.S.E. 



CHAPTERS ON EVOLUTION. With 259 Illustrations. Crown 8vo., cloth extra, ys. 6d. 

 LEAVES FROM A NATURALIST'S NOTE-BOOK. Post 8vo., cloth limp. 2s. 6d. 

 LEISURE-TIME STUDIES. With Illustrations. Crown 8 vo., cloth extra. 6s. 

 STUDIES in LIFE and SENSE. With numerous Illustrations. Crown 8vo., cloth extra. 6s. 

 COMMON ACCIDENTS: How to Treat Them. With Illustrations. Crown 8vo. is. ; 



cloth, is. 6d. 



GLIMPSES of LIFE and NATURE. With 35 Illustrations. Crown 8vo., cloth extra. 3*. 6d. 

 London : CHATTO & WINDUS, 214, PICCADILLY, W. 



THE BEST JEfcEJVIEDY FOR INDIGESTION. 



CAMOMILE PILLS 



Are confidently recommended as a simple but certain Remedy for Indigestion, which is the cause of nearly all the 

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 the "Natural Strengthener of the Human Stomach." "Norton's Pills" act as a powerful tonic and gentle 

 aperient ; are mild in their operation, safe under any circumstances, and thousands of persons can now bear testimony 

 to the benefits to be derived from their use, as they have been a never-failing Family Friend for upwards of 50 years. 

 Sold in Bottles at is. lid,, 2s. gd., and 11.J. each, in every Town in the Kingdom. 



Be sure to ask for " NORTON'S 



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PILLS," and do not be persuaded to purchase an imitation. 



