584 TRANS. OP THE ACAD. OP SCIENCE. 



February 3, 1868. 

 The Vice-President, Dr. C. W. Stevens, in the chair. 

 Ten members present. 

 Letters were read. 

 Publications were received, as follows : 



Detroit Rev. of Med. and Pharmacy, vol. iii., No. 1,1868, from the Ed- 

 itor. Proc. Essex Inst, vol. v., No. 5, 1867, from the Society. Amer. 

 Jour, of Science, No. 133, 1868, New Haven. Trans. Royal Society of 

 Victoria, vol. vii., 1866, vol. viii., pt. i. 1867, Melbourne, Australia, from 

 the Society. 



Dr. Engelmann presented to the Museum a collection of 

 lavas and other minerals from Mt. Vesuvius ; also, a speci- 

 men of Cactus of the genus Opuntia, from Arizona. 



The amendment to the By-Laws, offered at a previous 

 meeting, raising the semi-annual dues of members from three 

 to five dollars, was adopted. 



On motion, it was ordered that the Librarian place at the 

 disposal of Dr. Engelmann such number of copies of the 

 Transactions of the Academy as he may desire to take with 

 him for distribution and exchange in Europe. 



February 17, 1808. 



The President, Dr. B. F. Shumaed, in the chair. 



Seventeen members present. 



Dr. Engelmann presented for the Museum a collection of 

 fresh-water shells, from the vicinity of St. Louis, and from 

 the Meramec river, in St. Louis Co., Mo. 



Dr. Engelmann read a paper, communicated from Arizona, 

 by Dr. C. C. Parry, being " An Account of the Passage through 

 the Great Canon of the Colorado River, by Mr. James White, 

 with Geological Remarks," which was referred to the Com- 

 mittee on Publication. 



Frank G. Porter, M.D., and Mr. Charles F. Moeller, of St. 

 Louis, were elected Associate Members. 



March 2, 1808. 

 The President in the chair. 

 Fourteen members present. 

 Letters from correspondents were read. 

 Publications were received, as follows: 



Proc. Boston Soc. Nat. Hist., vol. ii., 1867, from the Society. Detroit 

 Rev. of Med. and Pharm., No. 2, 1868, from the Editor. Bernard 

 Quarritch : Catalogue of Rare Books, No. 222, London, 1868, from the 

 Publir-her. K. Preuss. Akad. der Wissenschaften : Monatsb., Sept.-Oct., 



