AMERICAN ASSOC! A TION FOR THE AD VANCEMENT OF SCIENCE. 293 



pilot chart of the North Atlantic Ocean, J. R. Bartlett, Navy Department. Met- 

 amosphism in the Huronian of the Northwest, R. D. Irving. Identification of the 

 Green Mountain gneisses in Eastern New England, C. H. Hitchcock. Occur- 

 rence of builders of decomposition in gneiss at Washington, D. C. , J. W. Spen- 

 cer. A study of " Eozoon Canadense," Alexis A. Julien. Evidences of local 

 glaciers in the Catskill Mountain region, John C. Smock. Sand boulders in drift 

 at Columbia, Mo., J. W. Spencer. The Missouri coteau and its moraines, J. E. 

 Todd. Course of motion in glaciers, Charles Whittlesey. The genesis and con- 

 servation of volcanic enery, J. W. Pike. Exhibition of a geological map of the 

 United States, and a geological map of New York, New Jesery and Pennsylvania, 

 J. W. Powell. On the phpsical condition of the interior of the earth, H, Hen- 

 nessy. Musical sound, its wide distribution and properties, H. C. Bolton. Mus- 

 ical sand : its wide distribution and properties, H. Carrington Bolton and Alexis 

 A. Julien. Notice on the micoscopical examination of a series of ocean, lake, 

 and desert sands, Alexis A. Julien and H. Carrington Bolton. On the erosive 

 action of the ice, J. S. Newberry. 



Section F (Biology) transacted business in the hall of the Union League. 

 E. D. Cope, of Philadelphia, was chairman, and C. E. Bessey, of Ames, Iowa, 

 secretary. The papers were : 



On Tenecanthus and Gyracanthus from the Chemung of Pennsylvania, E. W. 

 Claypole, Some observations on the influence of oxygenated and un-oxygenated 

 blood, as well as of blood in various degrees of dilution on the isolated heart of 

 the frog and terrapin, H. G. Beyer. Affinities of Dionsea, Joseph F. James. 

 Biological problems, C. S. Minot. A botanical study of the mite-gall found on 

 the petiole oi Juglans nigra, known z.% Erineum anomaluni : Schw., LillieJ. Martm. 

 The habits of some Arvicolinae, Edgar R. Quick and A. W. Butler. The exist- 

 ence and dorsal circumscription of the port M (foramen and Monro) in the adult 

 human brain, Burt G. Wilder. The relative position of the cerebrum and the 

 cerebellum in anthropoid apes, Burt G. Wilder. Observation on the phylogony 

 of the artiodactyla mammaHa, derived from American fossils, E. D. Cope. The 

 torsion of leaves, W. J. Beal. The fossil flora of the globe, historical view, Les- 

 ter F. Ward. The fossil flora of the globe, geological view, Lester F. Ward. 

 The fossil flora of the globe, botanical view, Lester F. Ward. Influence of isolation 

 upon vegetation, E. Lewis Sturtevant. The osteology of oreodon, W. B. Scott. 

 Vesiculse seminales of the Guinea pigs, C. S. Minot. A new parasitic Copepode 

 from the clam (Mya arenaria), R. Ramsay Wright. The influence of cross fertil- 

 ization upon the development of the strawberry, William R. Lazentey. Experi- 

 mental research relating to the etiology of tuberculosis, George M. Sternberg. 

 On the extinction of species, Thomas Meehan. Preliminary note on the lym- 

 phatics of the common bull-head {Amturus catus), F. L. Kilborne and S. H. 

 Gage. On the nervous system bf Comatula with observations on the mutual 

 affinities of the recent group of Echinoderms, A. Milnes Marshall. Stomates on 

 seeds, George Macloskie. Structure and development of suspensory ligament in 

 the horse, ox and sheep, D. J. Cunningham. Ethidene dichloride as an anses- 



