HARD WICKE'S SCIENCE-GOSSIP. 



liii 



A FEW WOR^ 



Dear Reader, — Did you ever know a cyclist to be satisfied with his " Machine " for more than a year? My experience of cyclists 

 is, that they are always changing, and it is quite amusing to hear their arguments in favour of every new machine they get. Weli, it is 

 just about the same with Hand Camera men — or worse. I never knew a man yet who was- satisfied with a Magazine Hand Camera for 

 more than a season. Of course, they were delighted when they got their last "latest novelty," and sang its praises for a week or two : 

 then something goes wrong, and they wish to part with it to get another of a different pattern. But how is it that the same thing does not 

 apply in the case of ordinary Cameras? Why, because there is no bother with magazines or trouble with unnecessary complications. 

 When a man buys a good Half-plate or a Whole-plate Camera he is usually satisfied for years, his only trouble then is the weight ; but with 

 one of my Patent Cameras and Barnett's Dark Slides for Half-plates he has no trouble at all, for he knows he has the lightest practical 

 Camera on earth. For furt/nr particulars see Catalogue. 



Dark Slides are, without doubt, the most practical of all plate-holders, though the English patterns are far too heavy and clumsy, and 

 when they are well made, as they ought to be, they are frightfully expensive ; indeed, they are made to-day without the slightest improve- 

 ments on those of thirty-five years ago. My Practical Hand Camera is not a Magazine, nor is it a fixed focus. It is provided with a 

 perfect double rack and pinion movement, focus index, and a focussing screen, which latter may be used or left at home. Plates or Films- 

 may be used with equal advantage, no sheaths or paper backing to bother with ; you can go out with just as many plates as you wish — say 

 two or three, half-a-dozen, or twenty, if you like. The Camera may be used in the hand for Snap Shots, or on a Tripod for time exposures 

 like any ordinary Camera. Any suitable lens may be used in it, but the one which I supply is a Rapid Doublet equal to any in the market. 

 The Shutter is Kershaw's Patent, adjustable for speed. 



PRICE- 



k Quarter-plate Size, without Lens, 55s. ; with Lens and View Meter, complete £4 10s. 



Stereoseopie Size, £4. Lenses extra. 



HAND CAMERA PAMPHLET FREE PER POST. 



TV. I. CHADWICK, 2, St. Manfs Street, Manchester. 



AUTOMATIC EXPOSURE TABLE 



DIEDIKT S.) 



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 

 Photography . 



" 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, Xs. 3d.. 



SOLE AGENT— 



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



Illustrated Catalogue of Pliotograpliic Apparattis, post-free. 



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



CHAPTERS ON EVOLUTION. With 259 Illustrations. Crown 8vo., cloth extra, p. 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. 15-.; 



cloth, is. 6d. 



GLIMPSES of LIFE and NATURE. With 35 Illustrations. Crown Svo., cloth extra. 35. 6d. 

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



THE BEST REMEDY EOR- IIYTJ I GE STION, 



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

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CAUTION". 



Be sure to ask for " NORTON'S PILLS" and do not be persuaded to purchase an imitation. 



