78 Paper Process in Photograph?/. [no. 1, new series, 



of the Silver solution, when the detail is nearly all visible ; on the 

 contrary, if the sky line be entirely invisible add A \ of the Aceto- 

 nitrate solution. 



Tilt the tray to and fro half a dozen times to ensure the perfect 

 mixture of the solution, or you will have patches of unequal de- 

 velopment. 



Float the marked side of the paper on this as before described, 

 and be careful that no portion of the solution is allowed to touch 

 the back of the paper — should this unfortunately happen, as it 

 sometimes will notwithstanding every precaution, instantly reverse 

 the paper and wet the whole of the back as the only way to avoid 

 a stain — turning it again as soon as the back is wetted thoroughly 

 and developing by immersion. Should there be an insufficiency of 

 Gallo-nitrate to cover the paper well, get an assistant to pour in 

 more whilst you hold the paper, replacing it face downwards as 

 soon as the solutions are mixed. 



The sky and most strongly illuminated parts of the picture first 

 appear, then the portion more in shade. When the darker parts 

 become visible through the back, lift one end between yourself and 

 the light, if the detail in the least brightly illumined parts is at all 

 visible, take it up and examine it carefully. If satisfied that you 

 have obtained as much detail in the shadows as can* be done with- 

 out too much intensifying the high lights, remove the paper at 

 once to a pan of clean water and plant it face downwards to allow 

 any decomposed Gallo-nitrate to fall to the bottom of the pan, 

 then pour off the water or, what is better, remove the negative to 

 another vessel of clean water. If from the length of time occupi- 

 ed in the development or any other cause, decomposition of the 

 Gallo-nitrate has taken place to any extent, the face of the nega- 

 tive may be very cautiously brushed with a small camel's hair 

 brush. After washing in 4 or 5 changes of water for half an hour 

 remove it to the fixing solution. 



Fixing Solution. 



This consists of 3 or 4 ounces of Hypo-sulphite of Soda to 1 

 pint of clean (not distilled) water — in which the negative is to be 

 left until all the yellow Iodide of Silver is dissolved, this can only 

 be ascertained by daylight which will not hurt the picture after 



