PHOTOGRAPHY 123 



this work ; though if, as often happens, this cannot 

 be found, and if, after washing, the films and plates 

 are found to have a deposit of grit or fine sand on 

 them, it is better to first dry them as they are and 

 to have them washed on the return. 



Drying. — It is not advisable to dry either films 

 or plates in the sun — especially plates, as the glass 

 becomes so warm that the whole film will simply 

 slide off it. 



Washing. — Care should be taken that all negatives 

 be most thoroughly washed to remov^e absolutely all 

 the fixing salts, otherwise it will be found that chemical 

 action has taken place and in many negatives the 

 image totally destroyed. 



Printing. — It is quite unnecessary to go into the 

 question of printing, as the traveller will hardly have 

 time to do any, and will be only increasing the weight 

 and size of his outfit for no practical purpose. All 

 the printing should be left till the return, when the 

 photographer has time and convenience for making 

 really good results from his negatives. 



Other Apparatus. — As well as the camera, nega- 

 tives, and developing apparatus, a few other articles 

 should be considered ; for instance, a light folding 

 tripod stand for taking time photos in dull weather 

 or for use of plates with the ground glass. Then 

 there are plate-holders, which need not be expensive 

 ones, and the slides should be made of some material 

 other than aluminium, as this metal is very liable 



