36 REPORT ON NATIONAL MUSEUM, 1886. 



(December 12,1885.) 



J. M. Flint, U. S. Navy. — Exhibition of rcprcsentativo speciiimns of Foraninifem 

 from tbo dredging.s of the U. S. Fish Comiuissiou steamer Albatross. 



ROiMYN Hitchcock. — The Red Snow. 



W. S. Barnard. — Digestion; environmental, etc. 



C. V. Riley. — The Mildews of the Grape-vine. 



C. Hart Merriam. — Description of a new 8iibsi»ecies of the common t:i.siiiii l';!ii> 

 munk, Tamias striatiis. ' 



(December 26, 1885.) 



C. Hart Merriam. — Contributions to North American Mammalogy. 1. riic. gerins- 



Tarn ias. 

 Frank H. Knowlton. — Multiplication in the Gyncecium of Datura atrainonitun, L. 



Otis T. Mason. — Mutilations of the human body. 



On January 1) and 23, 18BG, the sixth annual meeting (eighty-seventh and eighty- 

 eighth regular meetings) for the election of oftieora was held. 



On February 6, 188(), the annual address was delivered by Mr. G. Brown Goode, t he 

 jiresident of the Society, the subject being "The beginnings of American Natural His- 

 tory." 



(February 20, 188G.) 



RoMYN Hitchcock.— Demonstration of the resolving power of anew one-six teen ( li- 

 inch objective. 



D. E. Salmon and Thkoijald Smith. — On a new method of producing imiMnuit y 

 from contagious diseases. 



C. V. Riley. — A carniverons butterfly larva. 

 Lester F. Ward. — The Plane-tree and its ancestors. 



C. Hart Merriam. — Contribution to North American Mammalogy. 2. D- seriptixn 

 of a new species o^ Aplodoniia. 



Gkorgk Vasky. — New and recent species of North American Grasses. 



(March {;, 188G.) 



George Vasky. — Niiw and recent species of North American Grasses. 



Charles Hallock. — Hyper-instinct of animals. 



W. S. Bar.vard. — Exhibition of a fungus, with remarks. 



H. G. Beyek, U. S. Navy — Remarks on Antii)yretics. 



(March 20, 1886.) 



D. E. Salmon and Theobald Smith — Notes on some biological analyses of Poto- 

 mac drinking-water. 



H. G. Beyer, U. S. Navy — Remarks on Antii>yretics. 



W. S. Barnard — Exhibition of a fungus, with remarks. 



Frank H. Knowlton — Additions to and changes in the Flora Columbiana for 

 1885. 



Frank Baker and J. L. W()Rtm.\.\ — Recent investigations into the mechanism of 

 the elbow-joint. 



(April 3, 1886.) 



Frank Baker and J. L. Wortman — Recent investigations into the mechanism of 

 the elbow-joint. 



John B. Smith — Some jjccnliar secondary .sexual characters in the Deltoids, and 

 their supposed function. 



C. Hart Merriam — Cyntributions to North .\inerican Mammalogy. 3. Dcscrip- 

 tiou of iv new ,si.il)spe(;i(;s of Gray Squirrel. 



