296 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES VOL. 13, No. 13 
F. B. Smusper; Recording Secretary, Witt1AM R. Maxon; Treasurer, R. L. 
Faris; Managers, Class of 1926, H. L. Saantz, WitutaM Bowtr. 
The following Vice-Presidents, nominated by the affiliated societies, were 
then elected: Archaeological Society, A. H. Cuarx; Biological Society, A. S. 
Hircucocx; Botanical Society, W. E. Sarrorp; Chemical Society, W. M. 
Cuark; Institute of Electrical Engineers, A. R. CHEnry; Society of Engineers, 
R. H. Dauevetsu; Entomological Society, 8. A. Ronwer; Society of Foresters, 
G. B. Supwortu; National Geographic Society, FRepERIcK V. CoviLLE; 
Geological Society, W. C. Aupen; Medical Society, L. H. RetcHELDERFER; 
Philosophical Society, W. P. Wutrte. 
At 10:20 the meeting adjourned. 
173D MEETING 
The 173d mecting of the AcaApremy was held jointly with the Geological 
Society of Wasuington in the Assembly Hall of the Cosmos Club the evening 
of Wednesday, January 24, 1923. Dr. M. E. pz Marcenrin, Director of the 
Geological Survey of Alsace-Lorraine, delivered an illustrated address en- 
titled, The structure of the Alps. 
17ATH MEETING 
The 174th meeting of the AcAprmy was held in the Assembly Hall of the 
Cosmos Club the evening of Thursday, February 15, 1923. Mr. W. D. 
Couns, of the U. 8. Geological Survey, delivered an address entitled, 
The industrial aspects of modern methods of water purification. 
Successful manufacturing is dependent on the chemical character of the 
water available for use in the various processes. The methods of water 
purification that are necessary for some supplies have a profound influence 
on the industrial value of the treated water. This has been the experience 
of many manufacturers who have been compelled to use water from a treated 
supply and attempt to duplicate the production of a plant using a water so 
free from mineral matter and organic pollution that it required no treatment. 
The development of industry in the United States in the last fifty years 
has resulted in the movement of the center of industrial activity from New 
England, where pure water has been abundant, towards the middle west, 
where practically all the water available for public supplies requires purifi- 
cation. The demand for larger and larger supplies which must be taken from 
surface sources and the increasing pollution of these surface sources make 
necessary more and more complicated methods of treatment. While tue 
purification makes some waters better for industrial use than t ey were 
before treatment, there are many instances where the treatment necessary 
to make a water safe to drink renders it quite unsatisfactory for some indus- 
trial uses. Serious losses have resulted from seemingly insignificant causes, 
such as the well known “‘iodoform’’ odor in some chlorinated waters, or from 
the excess or deficiency of carbon dioxide resulting from treatment with 
alum or lime. The person responsible for the successful operation of a 
manufacturing plant where the chemical character of the water used has an 
effect on the product must watch carefully the operation of the water purifi- 
cation plant, if he is using the water from a public supply that is purified by 
one of the more complicated methods of treatment. (Author's abstract.) 
