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show at their best must be printed on a glazed (¢. e., clay- 
covered) paper ; these may serve a purpose in semi-popular or 
ephemeral publications like guide-books, but for real scienti- 
fic works they are (1) poorly suited for accurate illustration, 
and what is still worse they are (2) not lasting. We deem 
it better to publish, if necessary, fewer illustrations at a 
higher price and have these done well, than to issue any 
really scientific illustrations that are not of a permanent 
character. Half-tones and other illustrations that have to be 
printed on clay-covered paper should be excluded from our 
scientific publications.” 
Respectfully submitted, 
Lucien M. UNDERWooD, 
Chatrman of the Board of Scientific Directors. 
