63 



two sheets of paper and rolled with the photographic roller, 

 care being taken that the pressure be uniform and the paper 

 be not allowed to slip or wrinkle. The result is an accurate 

 and artistic print of both surfaces of the leaf, which should be 

 allowed to become thoroughly dry before handling as the thick 



3 i 4 



Fig. I. — I and 2. Quercus Chapmani. 3 and 4. Quercus myrtifolia. 



ink offsets and rubs for several hours. These prints when well 

 done can be used for the making of line or half-tone cuts or the 

 same process could be used in making transfers for lithographic 



