March, 1900. 



CORNELL 



NATURE-STUDY QUARTERLY 



NO. 4. 



Issued by the College of Agriculture and Experiment Station of 



Cornell University, under Chapter 430 of the Laws of 1899, of 



the State of New York. 



I. P. ROBERTS, 



T)irector, 



PUBLISnED BY THE UNIVEllSTTY, 



ITHACA, N Y. 



1900. 



Entered at the Postofflce in Ithaca, N. Y., as second class matter. 



