ACADEMY OF SCIENCES. 107 



Prof. Bolandcr, made some remarks on the grasses of the genus 

 Melica in addition to his published paper. 



Dr. E. Palmer gave an interesting account of his journeys in 

 Arizona and Sonora, the habits of the Indian tribes, and of the 

 ruins of their ancient towns, with the relics which he had found in 

 them. 



Dr. Stout exhibited some globular concretions from Calaveras 

 County, near Mokelumne Hill, and others from Fossil Hill, Nevada. 

 He contended that some of them were composed of volcanic mate- 

 rials and had been formed by being thrown out from craters in a 

 melted stated to a great height, then falling in water, by which 

 their shape was produced, as in the manufacture of leaden shot. 



Regular Meeting, February 7th, 1870. 

 President in the Chair. 



Twenty-two members present. 



Prof. Williams, Col. C. D. Gibbes, Abner Doble, Thomas Nelson, 

 and Charles C. Rueger, were elected resident members. 



Donations to the Cabinet : 25 species of land shells of Panama, 

 etc., by Dr. Palmer through Mr. Harford. A large collection of 

 Oregon and Californian plants by Dr. Kellogg, collected by himself? 

 Prof. Bolander and Mr. Harford. 



Donations to the Library. — The following foreign exchanges and 

 donations were received through the Smithsonian Institute, viz : 



Zoolog. Miscel. Nos. 14 and 15, 1867-8, two pam. 8vo.; Beitrage zur 

 Fauna von Nikobar, II., 1868, pam. Svo.; Uber Schraetterlings Selbstsfanger, 

 1868, pam. 8vo.; Uber EaiimwollschHtllings Egyptiens, 1868, pam. 8vo.; 

 Uber Drelikraukheit bei Gemsem, 1868, pam. Svo. — all by G. von Frauenfeld, 

 Vienna. Untersuch iibcr die Constitution der AtmosphJire, Dr. H. Gyldeu, 

 1868; Beobacht des gross Kunsten von 1861, 0. Struve, 1868; Beitr. zur 

 Entwickelungs der Libelluliden u. Hemipteren, A. Brandt, 1869 ; Uber die 

 Halsrippcn der Menschcn, Dr. W. Gruber, 1869 ; Al Farabis' Leben, etc., M. 

 Steinschneider, 1869 ; Die Lehre von der Gymnospermie in Pflanzenreiche, G. 

 Sperk, 1869 ; Beitrage zur Anat. der Schiidelgrundes, Dr. W. Gruber, 1869 ; 

 Histoire Chronol. dArmeuie, M. Brosset, 1869 ; Uber Liuaritkrystalle, N. von 



