JOURNAL OP PROCEEDINGS. 265 



Dr. Enselmann exhibited a diagram of the fall of rain in 

 the year 1861, so constructed as to show at a glance each sin- 

 gle fall of rain, and its amount. 



Dr. En^elmann exhibited a specimen of the peculiar sac or 

 hood-shaped sheath of a New Granada Palm, the Manx- 

 caria saccifera, resembling a coarse elastic cloth fabric of 

 artificially interwoven fibres. He also exhibited from his her- 

 barium specimens of other palms, showing a similar (in some 

 coarser, in others finer) structure of the sheath of the leaf. 



April 3, 1865. 

 The President, Dr. Engelmann - , in the chair. 



Six members present. 



Letters were read from the Smithsonian Institution, March 

 23, 1865 ; K. bayerische Akad. der Wissenschaften, Munich, 

 Jan. 2, 1865 ; Naturf. Verein, Hamburg, April 26, 1863,— ac- 

 knowledging receipt of Transactions of the Academy, and 

 sending publications in exchange. 



Publications were received as follows : 



Table of Mean Temp, at Milwaukie, Wisconsin, from 1837 to 1864, by 

 C. J. Lynde, Esq., E. S. Marsh, M.D., Charles Winkler, M.D., and 

 I. A. Laphara, LL.D., and a Map of Wisconsin, with lines showing the 

 effect of the Lake in elevating the temperature in January and depres- 

 sing it in July, by I. A. Lapham, LL.D., 1865— from the Authors. Amer. 

 Phil. Soc. : Proc, Vol. IX., No. 72; List of Members, 1865, Philad.— from 

 the Society. Albany Institute : Trans., Vol. IV., 1858-6-4; Trans, of the 

 Soc. for' Promotion of Useful Arts, Vol. IV., Pt. ii., Albany, 1819— from 

 the Institute. Der Zoologische Garten : Jahrg. V., Nos. 7-12, 1864, Frank- 

 furt a. M. — from the Editor. K. K. Geol. Reichsanstalt : Jahrhuch, Band 

 XIV., No. 3, 1864, Wien— from the Institution. Offenbacher Verein : Be- 

 richt V., 1864— from the Society. Verein der "Freunde der Naturg. : Ar- 

 chiv. Neubrandenburg, 1864— -from the Society. Royal Acad, of Sciences 

 of Munich: Annalen der IviJnigl. Sternwarte bei Miinchen, Vol. XIII., & 

 Supp. Band IV., 1864; Buhl, Stellung; Dollin^er, Kcenie: Maximilian II.; 

 Reihl, Begriff; Thomas, Stelluns:; Sitzungberichte, Vol. II., Heft 2-4, 

 1863; Vol. I., Heft 1-5 ; Vol. II., Heft 1-2, 1864— from the Royal Academy. 

 Koval Norse Univers. of Christiania: Meteor. Beobacht. Lief. III. & IV., 

 1848-55; Sneebraeen Folgefon af S. A. Sexe, 1864; Geol. Forhold,af M. 

 Irgens oz Th. Hiortdabl, 1864; Te Deum a le Fete 4 Nov., 1864— from the 

 University. Naturw. Verein : Abhandl., Band IV., Abth. 3, Hamburg — 

 from the Society. 



Dr. Pollak exhibited some very fine specimens of native 

 silver and copper from Lake Superior, and other minerals, 

 collected by Major J. F. Meline. 



Dr. Wislizenus presented the palate bone and teeth of a 

 fish, found in the bluffs of the Mississippi in Iowa, and 

 supposed by the finder to be a fossil bone. It appeared to be 

 a recent bone of the White Perch (Corvina oscula), of the 

 Mississippi River. 



