January 6, 1905.] 



SCIENCE. 



5 



Reception by the Provost of the University of 

 Pennsylvania, Dr. C. C. Harrison and Mrs. Har- 

 rison, in the Museum. 



THURSDAY, DECEMBER 29, 1904. 



Meeting of the council at 9 a. m. 

 Meetings of the sections at 10 a. m. 

 At 1 :00 P. M. 



Luncheon to the members of the association and 

 societies in the gymnasium. 

 At 2:30 P. M. 



Addresses of vice-presidents as follows : 

 Vice-President Hall, before the Section of 

 Physics, in Morgan Laboratory of Physics. Sub- 

 ject, ' A Tentative Theory of Thermo-Electric 

 Actions.' 



Vice-President MacBride, before the Section of 

 Botany, in Biological Hall. Subject, ' The Ala- 

 mogordo Desert.' 



Vice-President Mark, before the Section of 

 Zoology, in Laboratory of Physiology and Path- 

 ology. Subject, ' The Bermuda Islands and the 

 Bermuda Biological Station for Research.' 



Vice-President Baldwin, before the Section of 

 Social and Economic Science, in Logan Hall. Sub- 

 ject, ' The Modern Droit d'Aubaine.' 



At 8:00 P. M. 



The retiring President of the American Chem- 

 ical Society, Dr. Arthur A. Noyes, delivered a lec- 

 ture, illustrated by experiments, on the ' Prepara- 

 tion and Properties of Colloidal Solutions,' in the 

 Harrison Laboratory of Chemistry. 



FRIDAY, DECEMBER 30, 1904. 



Meetings of the council at 9 A. i\r. 

 Meetings of the sections at 10 a. m. 

 At 1:00 p. M. 



Limcheon to the members of the association and 

 societies in the gymnasium. 

 At 2:30 P. M. 



Addresses of vice-presidents as follows : 



Vice-President Woodward, before the Section of 

 Mechanical Science and Engineering, in the Me- 

 chanical Laboratory. Subject, ' Recent Progress 

 in Engineering Education.' 



Vice-President Saville, before tlie Section of 

 Anthropology, in the ^Museum of Science and Art. 

 Subject, ' ^lexican and Central American Arche- 

 ology.' 



At 10:00 P. M. 



Meeting of the General Committee at the Hotel 

 Walton. 



SATURDAY, DECEMBER 31, 1904. 



Meeting of the council at 9 a. m. 



Final general session at 10 A. M., in the chapel, 

 College Hall. 



Meeting of the sections following the adjourn- 

 ment of the general session. 



At 1 p. M. 



Luncheon to the members of the association and 

 societies in the gymnasium. 



EXCURSIONS. 



Excursions to the following plants were 

 arranged by the local committee : 



Belmont Filtration Plant (filtration of city 

 water) . 



F. A. Poth & Sons Brewery. 



J. P. Baltz Brewmg Company. 



Eddystone Print Works, Eddystone, Pa. (bleach- 

 ing and dyeing of all kinds of cotton goods, en- 

 graving and preparing the rolls). 



Barrett jManufacturing Coo. (refined coal-tar 

 chemicals) . 



Baldwin Locomotive Works. 



Atlantic Refining Co. (petroleum oils). 



Cramp's Ship Yard. 



Camden Coke Company (Otto-Hoflfman by- 

 product coke ovens). 



United Gas Improvement Co. (coal and water 

 gas) . 



Hulton Brothers (dyeing and finishing). 

 Forth & Foster (dyeing and finishing). 

 United States Arsenal. 

 United States Mint. 

 United States Navy Yard. 

 Gillinder's Glass Works. 



High Pressure Fire Service Plant, kindness of 

 Mr. F. L. Hand, Chief of the Bureau of Water, 

 Philadelphia. 



Philadelphia Electric Co.'s new Power Station, 

 through the kindness of Mr. J. B. McCall, Presi- 

 dent Phila. Electric Co. 



Philadelphia Subway, through the kindness of 

 Mr. W. S. Twining, chief engineer, and Mr. Charles 

 M. Mills, principal assistant engineer, Subway 

 and Elevated Railway Construction. 



Wm. Sellers & Co., Inc., through the kindness 

 of Mr. William Sellers and Mr. Coleman Sellers, 

 Jr. 



On Monday evening, December 26, 1904, 

 the American Physiological Society held a 

 smoker at the University Club. 



On Tuesday evening, December 27, 1904, 

 Professor W. F. Osborn gave a lecture be- 

 fore the American Society of Naturalists 



