or Popular Science News 
Founded in 1866 by the late Dr. James R. Nichols as the 
BOSTON JOURNAL OF CHEMISTRY 
A Combination of 
Twenty Similar 
Publications 
BENJ. LILLARD, Manager, 108 Fulton Street, New York. 
QO years 
OLD 
Dr . Jonathan Dwight, Jr,, December 17, 1897. 
2 East 34th st.. City, 
Dear Sir:- 
We have purchased the Natural Science Journal and it will be 
stopped as a separate publication. Its main features, however, will 
be continued regularly as a department of Popular Science News, 
Subscriptions that are paid in advance will be made good 
proportionately by copies of popular Science News free of charge, and 
we have accordingly marked you paid on our books in full up to September 
1899. 
We also invite your attention to the enclosed premium list. 
Yours very truly. 
POPULAR SCIENCE NEWS 
