Capt. Abuey. On the Effect of the [Dec. 15, 



3AgI + AgBr on paper deve- Developed. 

 loped gallic acid. 



Ditto, developed 

 citrate. 



ferrous Developed. 



3 Agl + AgBr + AgNO s collo- Developed 

 dion, wet plate, acid or (long 

 alkaline developer. exposure). 



Ditto ditto (short 



exposure). 



Developed 



3AgI+AgBr in gelatine, alka- (long and 

 line, or ferrous oxalate short 

 developer. exposure 

 shown). 



AgI+3AgBr on paper or in Developed 

 collodion, ferrous citro- (long 

 oxalate developer. exposure). 



Ditto 



ditto 



(short 

 exposure). 



AgI + 3AgRr in gelatine, fer- Developed 

 rous oxalate developer. (long 



exposure). 



ditto 



(short 

 exposure) 



3AgI + AgCl + AgNO s on Print. 

 paper, or ditto washed, both 

 dry. 



3AgI + AgCl + A£N0 3 wet, or Print. 

 3AgI+AgCl + KN0 2 wet. 



AgNO s , or Developed 

 h KNO, on 



3AgI + AgCl - 

 3AgI + AgCl 



paper, developed with gallic 

 acid or ferrous citro-oxalate. 

 Washed 3AgI + AgCl on paper, Developed 

 ferrous citro-oxalate deve- 

 loper. 



3Agl+AgCl in gelatine, de- Developed. 

 veloped ferrous oxalate. 



Agl + AgCl in gelatine, deve- Developed 

 loped ferrous oxalate. 



Agl + 3AgCl paper, washed. Print. 



Agl + 3AgCl+ AgNO s wet. 



Print. 



AgI + 3AgCl in gelatine, or on Developed 

 paper, developed with fer- 

 rous citro-oxalate or acid 

 developer. 



Agl + 3AgCl + AgN0 3 , acid Developed 

 developer. 



AgBr exposed to light treated Print a 

 with I, exposed to spectrum, also dev 

 loped. 



