514 PROCEEDINGS OF THE AMERICAN ACADEMY 



Professor Safford presented a paper on Star-places observed 

 at Williams College Observatory in 1884, with remarks on 

 the present fundamental catalogues. 



Mr. Edmands spoke of a device to do away with the 

 collimator lens. 



Mr. Sereno Watson presented the following papers : — 



Preliminary Synopsis of North American Carices. By L. 

 H. Bailey, Jr. 



Contributions to American Botany: — 1. Revision of the 

 North American Ranunculi. 2. Sertuni Chihuahuense, an 

 account of collections of plants made in Chihuahua, by 

 C. G. Pringle and Edward Palmer. 3. Miscellanea. By 

 Asa Gray. 



Contributions to American Botany: — 1. A List of Plants 

 from Southwestern Chihuahua, Mexico, collected by Dr. E. 

 Palmer, 1885. 2. Descriptions of New Species of Plants, 

 chiefly from the Pacific States and Chihuahua. 3. Notes 

 upon some Polypetalae and Palms of Eastern Guatemala. By 

 Sereno Watson. 



Seven hundred and ninet.y-second Meeting. 



May 12, 1886. — Monthly Meeting. 



The President in the chair. 



The Corresponding Secretary read a letter from Emil Du 

 Bois-Reymond, acknowledging his election as Foreign Honor- 

 ary Member. 



The following papers were presented : — 



A biographical notice of the late Edward Tuckerman. B}' 

 Asa Gray. 



The Crystalline Structure of Iron Meteorites. By Oliver 

 W. Huntington. (By invitation.) 



A Catalogue of Polar Stars for the Epoch 1875.0 resulting 

 from all the available Observations made between 1860 and 

 1883, and reduced to the System of the Catalogue of Publi- 

 cation XTV. of the Astronomische Gesellschaft. By William 

 A. Roofers and Anna Winlock. 



