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CONTENTS. 



PAGE 



I. — The Parallaxes of (u. and 6 Cassiopeise, deduced from Rutherfurd Pho- 

 tographic Measures. By Harold Jacoby . . . . o- 



II. — Tlie Myriapoda Collected by the United States Eclipse Expedition 



to West Africa, 1889 and 1890. By O. F. Cook and G. N. Collins 24 



III. — Studies on the Life-history of some Bombycine Moths, with Notes 

 on the Setae and Spines of Certain Species By Alpheus S. 

 Packard 41 



IV. — A Study of the New York Obelisk as a Decayed Boulder. By 



Alexis A. Julien ......... 93 



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