98 TRANSACTIONS OF THE [JAN. 18, 
the sand becomes sonorous. The sand must also be of approxi- 
mately uniform size of grain. The paper was discussed by Pro- 
fessors Mayer, Van Nardroff, Pupin and Hallock. 
At 10:50 the meeting adjourned. 
WILLIAM HALLOcK, 
Secretary of Section. 
SratTeD MEETING. 
January 13th, 1896. 
The Academy met with Dr. Curtis in the chair, Dr. Dean 
acting as temporary secretary. There was an attendance of six- 
teen (16) persons. 
In the absence of regular business, the Section proceeded at 
once to the reading of papers. 
The first, that of Dr. Geo. 8S. Huntington on “ Contributions 
on the Visceral Anatomy,” dealt with the visceral anatomy of 
the following forms: 
Myrmecaphaga jubata. 
Tamandua bivittata. 
Arctopithecus didactylus. 
Dadypus sexcinctus. 
Tatusia novemcincta. 
Manis longicaudata. 
In the brain (hemispheres) the uniform presence of a more or 
less modified longitudinal sagittal sulcus parallel with the great 
longitudinal fissure, the tendency to the formation of a trans- 
verse frontal sulcus, and the absence of a distinct Sylvian 
fissure, are to be noted as Edentate characters. In the alimen- 
tary tract the structure of the stomach separates sharply the 
Sloths from the remaining groups, being composite in the former, 
approaching the type of the sub-divisions found in Artiodactyla, 
simple in the others with a more or less well marked pyloric 
gizzard. The ileo-colic junction exhibits a complete series in 
