RECORDS OP MEETINGS. 709 



The following papers were presented by title : — 



Contributions from the Gray Herbarium of Harvard Univer- 

 sity. New Series. No. XXVI. ''New and otherwise Note- 

 worthy Angiosperms from New i\Iexico and Central America." 

 By J. M. Greenman. Presented by B. L. Robinson. 



" Binary Families in a Triply Connected Region, with Espe- 

 cial Reference to Hypergeometric Families." By D. R. Curtiss. 

 Presented by M. Bocher. 



" An Explanation of the False Spectra from Diffraction 

 Gratings. By Theodore Lyman. 



. " Viscosity of Gases." By J. L. Hogg. Presented by John 

 Trowbridge. 



" The Spectra of Gases and Metals at High Temperatures." 

 By John Trowbridge. 



" The Changeable Hydrolytic Equilibrium of Dissolved Chro- 

 mic Sulphate." By Theodore William Richards and Frederic 

 Bonnet, Jr. 



"The Anomalous Dispersion, Absorption, and Surface Color 

 of Nitroso-dimethyl-aniline." By R. W. Wood. Presented by 

 C. R. Cross. 



On the motion of the Recording Secretary, the following 

 resolution was unanimously adopted : — 



Resolved^ That the Fellows of the American Academy desire 

 to place upon record their grateful appreciation of the services 

 of their retiring President, Alexander Agassiz, during the nine 

 years in which he has presided over their deliberations. 



