ELEMENTARY PHOTO-MICROGRAPHY. 45 



Pins. 



Mounting paste. 

 Weights and scales. 

 Funnels. 



Print clips for suspending prints from a line 

 while drying. 



A dropping bottle for potassium bromide. 



Six printing frames. 



A printing frame for making lantern slides. 



Masks and mounts. 



Cover slips for lantern slides. 



A knife paper' trimmer. 



A retouching desk. 



Towels and a sponge. 



The reader is advised to make his own de- 

 velopers. Chemicals of the kind and quantity given 

 wili be found ample for a start. 



Alum ... ... 4 ozs. at 2d. Ib. 



Acetic acid ... 8 ozs. 2d. oz. 



Citric acid ... ... 2 ozs. 2d. oz. 



Hydrokinone ... i oz. lod. oz. 



Hydrochloric acid ... 10 ozs. id. oz. 



Methylated spirit ... 10 ozs. 6d. Ib. 



Mercury bichloride ... i oz. 46. oz. 



Metol i oz. at 2s. 6d. oz. 



Nitric acid ... 2 ozs. id. oz. 



Oxalic acid ... 2 ozs. 6d. Ib. 



Pyrogallic acid ... i oz. ,, nd. oz. 

 Potassium oxalate 



(neutral) 2 ozs. id. oz. 



