JOURNAL OF PROCEEDINGS. 555 



Publications received : 



An Essay on the Life in Nature, by Louis Mackall, M.D. ; on the Law 

 of Muscular Motion, by same; on Physical Force, by same, from the 

 Author. Proc. Acad. Nat. Sciences, Philad., No. 5, 1865, from the Acad- 

 emy. Constitution, By-laws and Reports of the Chicago Acad, of Sci- 

 ences, 1865, from the Academy. Historical Notice of the Essex Institute, 

 Salem, 1866, from the Institute. Catalogue of the Palaeozoic Fossils of 

 N. America, Pt. i., Echinodermata, by B. F. Shumard, M.D., from the 

 Author. Enumeration of Fossils of the Niagara Limestone at Chicago, 

 with descriptions of new species, by Profs. A. Winchell and Oliver Marcy, 

 1865, from the Authors. Illustrated Catalogue of Museum of Comp. 

 Zoology, No. 2, Acalephae, by Alexander Agassiz, Cambridge, 1865, from 

 the Author. Proc. Amer. Pharmaceutical Asso., Boston, 1866, from the 

 Society. Medical Reporter, No. 2, St. Louis, 1866, from Dr. Potter. 



Mr. G. C. Broadhead donated to the Academy a numerous 

 collection of geological specimens from Cass and Jackson 

 counties in Missouri. 



Rev. Mr. Kemp made some remarks upon certain Algaa of 

 the genus Vaucheria. 



Dr. Oscar F. Potter was elected Recording Secretary in 

 place of Mr. Spencer Smith, resigned. 



Mr. Felix McArdle was elected an Associate Member. 



April 2, 1866. 



The President in the chair. 

 Ten members present. 

 Publications were received as follows : 



Canadian Journal, No. 61, 1866, Toronto, from the Society. Proc. 

 Boston Soc. Nat. Hist., vol. x., pp. 81-144, 1865, from the Societv. Trans. 

 Illinois State Horticultural Soc, 10th Ann. Meeting, Chicago, 1866, from 

 the Society. Morphologische Bemerkungen iiber Lobelia Dortmanni L., von 

 Franz Buchenau, Bremen, from the Author. Proc. Essex Institute, vol. 

 iv., No. 7, 1865, from the Society. Medical Reporter, No. 4, St. Louis] 

 from Dr. Potter. 



Dr. Engelmann stated that it was a curious fact that cer- 

 tain species of the genus Juncus, and other salt water plants, 

 which are known in Europe only as sea-plants, have been 

 found on our lake and river shores. 



April 16, 1866. 



The President in the chair. 



Six members present. 



Dr. Wislizenus presented for publication a paper entitled 

 "Observations on Ozone," by Adolph F. Bandelier, of High- 

 land, Illinois, which was read, and referred to the Committee 

 on Publication. 



[May, 1858.] gg 



