52 
HINTS TO TRAVELLERS. 
II. 
PHOTOGEAPHY. 
By W. F. Donkin, m.a., f.c.s., a.c., late Lecturer in Chemistry at 
St. George’s Hospital. 
Bevised and brought up to date by J. Thomson, Instructor in 
Photography B.G.S. 
The traveller who wishes to take photographs of the scenery he may 
pass through has first to decide on the size of plate he intends to employ, 
for on this will depend the size and weight of all the necessary apparatus. 
The smallest size that is worth taking is known as “ quarter-plate/’ 
measuring 4? x 31 inches; the largest size which admits of the apparatus 
being carried by one man is 71x5 inches. Intermediate sizes are 5x4, 
and 61 x 4f, or “ half-plate.” 
On high mountain ascents, and in" cases where scarcity of porters or 
some other reason may compel the traveller to carry his own apparatus,, 
it may be advisable to have a ff quarter-plate ” camera, as, although the 
pictures obtained are trivial in appearance, excellent enlargements and 
lantern slides can be produced from them. In countries where, as in 
India, porterage is cheap and easily obtained, large sizes may be adopted, 
such as 8! x 6l or “ whole plate ”; but for general utility and convenience 
7i x 5 is recommended, and in the following remarks it will be assumed 
that this is the size adopted.* 
The next point to decide is as to the selection of the sensitized medium 
for receiving the image—glass plates, celluloid, or other films. 
The weight of the entire apparatus necessary for taking twelve pictures, 
namely, camera, slides, 12 glass plates, lenses, leather case, and tripod 
stand, will be from 20 to 25 lbs. The weight of glass plates 7i x 5 inches 
* A “quarter-plate” camera ought to be taken to supplement the work of the 
larger instrument, and to be used either as a hand-camera, or on a tripod stand. 
