The Warblers 
in Color 
B1 RD-LORE 
(Kdited by Frank M. Chap¬ 
man) is publishing a series 
of colored plates, from drawings by Louis Agassiz Fnertes and Brace 
llorsfall, accurately representing all the plumages of North American 
W arblers. 
The text accompanying these beautiful pictures is compiled by Prof. 
VV. W. Cooke, from records in the Biological Survey. It gives the aver¬ 
age migration dates of Warblers at hunclreds of localities, often for long 
periods of timf;. Tne data for the Iledstart, for example, represent the 
work of over 50 observers for a total of 427 years! 
Until the supply is exhuusted we loill give a free copy 
of our December, 1903, issue, containing the first two col¬ 
ored Warbler plates, to all subscribers to Vol. VI of BIRD- 
LORE, beginning February 1, 1904. 
2 0 CENTS A NUMBER $1.00 A YEAR 
THE MACMILLAN CO., 66 Fifth Ave.. New York City 
MINERAL COLLECTOR. 
PUBLISHED MONTHLY. $1 A YEAR. 
The only magazine in the country devoted entirely to Mineralogy. 
Now in -its seventh year. Send 10 cents in stamps for sample copy. 
Exchange page free to Subscribers. 
The Mineral Collector, '73 w. 65 th st., New York city 
(If you wish a few showy minerals for ornamental purposes or your 
collection write us.) 
Mineral Calcareous Tufa 
Showing the organic inclusions interestingly. Specimens suitable for 
collections. Prefer miscellaneous documentary or scientilic publications 
in exchange. Prompt response to all communications. 
JOSEPH N. PROKES, Box 352, Jackson, Minnesota 
R B. WHELPLEY 
~ 
Biologfical Draughtsman 
: - - -- 
DUBLIN New Hampshire 
