PUBLISHERS' NOTE 



The two monographs which follow were originally 

 published in The Photo-Miniature series, but 

 have been out of print for some years. They are 

 here reprinted together in response to many requests, 

 and, as the only handbooks on their subjects at 

 present available, will doubtless be welcomed by 

 those who need the information they offer. 



Copyright 1900, 1905, 1911 

 By Tennant and Ward, New York 



