130 PROCEEDINGS OF THE PALEONTOLOGICAL SOCIETY 



SMOKER TO THE SOCIETY 



The presidential address was followed by a smoker to the Society as 

 guests of Doctor Holland, Director of the Carnegie Museum. After re- 

 freshments had been served and conversation had continued for an hour, 

 Doctor Holland, the host of the evening, called the Society to order and 

 introduced one member after another for impromptu talks and reminis- 

 cences. The good stories related by Doctors Holland, Osborn, Williston, 

 x\mi, and Grabau, of American and foreign paleontologists, were espe- 

 cially enjoyed. The Society also had the pleasure of listening to ad- 

 dresses by the Chancellor of the University of Pittsburgh, members of 

 the Board of Trustees of the Carnegie Museum, and other guests, and 

 from several of the Fellows of the Geological Society of America. As 

 the hour of 12 approached. Doctor Holland, in a patriotic address, em- 

 phasized the duty of science to the nation, and asked us to mark the 

 passing of the old year with a pledge to our country. As the whistles of 

 the great steel mills along the three rivers of Pittsburgh, the armorer of 

 the nation, announced the birth of the New Year, we arose and pledged 

 ourselves anew by the singing of "America.'' 



Session of Tuesday, January 1 



Tuesday morning, at 10 o'clock, the members met in the hall of verte- 

 brate paleontology of the Museum and were shown all the choice speci- 

 mens of the exhibit by Doctor Holland, who pointed out the most strik- 

 ing and interesting features in each. Time was lacking for a complete 

 tour of the Museum, so Doctor Holland then guided us through the 

 laboratories of vertebrate paleontology, where, with the magnificent speci- 

 mens before us, he presented the following paper: 



SOME OBSERVATIONS ON THE OSTEOLOGY OF DIPLODOCUS 

 BY WILLIAM J. HOLLAND 



Questions and remarks by Doctors Osborn, Williston, and Matthews, 

 with replies by Doctor Holland, added to this interesting discussion and 

 gave the members an insight into the great explorations by the Carnegie 

 Museum and its richness in vertebrate remains^ The recently acquired 

 material of Diplodocus in the possession of the Carnegie Museum, in- 

 cluding a perfect skull, in which even the sclerotic coat of the left eye-ball 

 had been petrified, was the especial subject of Doctor Holland's paper, 



