178 The American Naturalist. [February, 
from generation to generation by education and by imitation, a process, 
which Prof. J. Mark Baldwin had termed “Social Heredity.” 
At 8.15 P. M. the Society attended at the Fogg Museum of Art, 
Harvard University, Cambridge, a lecture by Mr. Alexander Agassiz, 
on “ The History of Deep Sea Explorations ;” and at 9.30 P. M. attended 
a reception by Mr. Alexander Agassiz, at his residence on Quincy Street, 
Cambridge. 
On Wednesday, December 30th, 12 M., the Society attended at the 
Fogg Museum of Art, Harvard University, Cambridge, a lecture by 
Prof. E. B. Wilson, on “ Recent Developments of the Cell Theory; at 
1.30 P. M. was served at the Faculty Rooms, University Hall, Cam- 
bridge, a luncheon, by invitation of the President and Fellows of Har- 
vard College. Two addresses were delivered in honor of the Fiftieth 
Anniversary of the arrival of Agassiz in Cambridge, by President. 
Elliott and Prof. Wm. James. At 3 P. M., Mr. Alexander Agassiz met. 
the Society in the Museum of Comparative Zoology, and described the 
Museum; and at 6.30 P. M., Hotel Brunswick, corner of Boylston and 
Clarendon Streets, Boston, a business session was held. At 7 P.M. the 
annual dinner of the Affiliated Societies took place at the Hotel Bruns- 
wick, at the close of which the societies listened to the address of the 
President, Prof. W. B. Scott. 
American Physiological Society.—Program: Tuesday, De- 
cember 29th, at the Harvard Medical School, General Business; 
Reading of Papers: W. T. Porter, “Studies in the Physiology of the 
Mammalian Heart:” T. Hough, “On the Duration of Cardiac Stand- 
still with Different Strengths of Vagus Stimulation ; ” R. Hunt, “ Some 
Experiments on the Relation of the Inhibitory to the Accelerator Nerves 
of the Heart ;” W. H. Howell,“ Exhibition of Plethysmographic Curves 
Obtained During Sleep, with Remarks;” H.P. Bowditch, “ The Rela- 
tion between Height, Weight and Age in Growing Children ;” ©: 8 
Minot, “An Experiment on Telegony;” S. J. Meltzer, “On the Con- 
traction of the Stomach Produced by Direct Stimulation and by Stimu- 
lation of the Vagi with the Faradic Current; ” Fr. Pfaff, “An Experi- 
mental Investigation of Some of the Conditions Influencing the Secretion 
and Composition of Bile” (With Mr. A. Balch); G. Lusk, “ The Pro- 
duction of Sugar from Gelatine in Metabolism ;” W. T. Porter, “ De- 
monstration of a Method for the Isolation of the Mammalian Heart ; 
S. J. Meltzer,‘ Demonstration of the Reaction of the Stomach to Faradie 
Stimulation ;” G. T. Kemp, “ Demonstration of a Convenient Form of 
Apparatus to Avoid Explosions in Gas Analysis.” o 
