290 The Bird 
science depends upon two things: first, the accumula- 
tion of facts; and secondly, a philosophical spirit capable 
of generalizing and bringing order out of the chaos of 
Fic. 230.—Carp, a fish with distinctly marked scales. (Keller, photographer.) 
these myriad observations. A knowledge of museum 
facts is of but slight use in such a subject as the one under 
consideration, which requires more adequate knowledge 
