The Dark Room : Developing and Printing 59 



has been added about a dram of the bromide solu- 

 tion and then developing it in a developer strong 

 with bromide. The development of an overex- 

 posed plate must be carried much farther than 

 when the exposure is normal, otherwise the result 

 will be flat with no contrasts. 



For normal or under exposures tank develop- 

 ment is an excellent method. This consists in 

 placing the plates in a covered tank of developer 

 and allowing them to remain there until com- 

 pletely developed. The hard rubber tanks are the 

 best, but much more expensive than are those 

 made of composition. I should recommend that 

 metal tanks never be used. The developer should 

 be diluted with about twenty times the amount of 

 water used for normal development, and this 

 should develop a correctly exposed plate in about 

 an hour. The tank should be thoroughly washed 

 before being used, and sufficient developer placed 

 in it to completely cover the plates. The plates 

 should not be placed so close together that they 

 cannot be removed with perfect ease, and they 

 should be handled very little or none at all during 

 the process of development. 



If a negative is too dense, from over exposure 

 or over development, it can be reduced after being 

 fixed by placing it in a weak hypo bath to which 

 has been added enough red prussiate of potash to 

 turn it to a lemon-yellow. The tray should be 



