160 W. Crookes on the Wax-paper Photographic Process. 
2nd. To avoid all hurry and confusion, it is of the utmost im- 
portance that the prepared paper or other medium, be of a kind — 
sitive by the nitrate of magnesia process, was a failure. igi 
4th. Strong contrast of light and shade, and absence of half 
pictures, is in this case no objection. spe ping 
5th. It is essential to preserve the original results in an ac- 
cessible form; and for this reason, the daguerreotype process, 
: ly as it seems to answer other requisites, 1s obviously 
not the one best suited to our purpose. q 
