28 Proceedings. 



Mr. Washburn was on board the Albatross as one of the U.S. naturalists 

 during the winter cruise to Nassau, Key West and other points along the 

 coast of the United States in the season of 1885-6. 



October 5, 1886. 



Nine persons present. 



Herbert VY. Smith of St. Paul was elected a member. 



T*resident Elliot presented some silver ores, (part of them also gold-bear- 

 ing) from the following localities tn Montana; the Corinth mine; the Athens 

 mine; the Lafayette mine; the Hennepin mine; the Arabi mine; the Mc- 

 Quinn mine and the Mt. King mine. The same donor presented a piece of 

 Obsidian from Obsidian mountain, Yellow Stone Park. 



Dr. E, S. Kelley presented a potato which exhibited a curious anomaly of 

 vegetable growth; in that from an old potato remaining in the dark during 

 the summer, a vine had developed and a smgle tuber had formed about three- 

 fourths the size of the old one and 8 inches from it on the vine. This was an 

 illustration apparently of growth by simple metastasis without the process of 

 assimilation taking aoy preceptible part. 



Secretary Hall presented some pyrite concretions from an artesian well 

 at Aberdeen, Dak. and gave some geological facts bearing on the water sup- 

 ply of the eastern half of Dakota. 



November 2, 1886. 



Thirteen persons present. 

 S. P. Channel! was elected a member. 

 A discussion on certain psychical phenomena and the work of 

 the American and English societies for psychical research took 

 place led by M. A. Morey. 



Adjourned to meet the 16th inst. for the report of the section 

 of sanitary science. 



November 16, 1886. 



Corresponding Secretary W. H. Leonard presided. 



Dr. Charles N. Hewitt of Red Wing read a paper from the 

 section of sanitary science of which the following is a syllabus: 



The science and art of public health; their works; their future; and their 

 claims to personal and public use and assistance. Recent advances in the lead- 

 ing departments of the subject were review, d e. g. bacteriology, illustrated 

 by a number of slides under microscopes; air and water as related to health 

 and disease; their microsceopj^ and chemistry; preventive work against 

 specific diseases e. g. rabies, variola, ague, etc., in man and lung plague and 

 other diseases in cattle. The mutual relations of infectious diseases of 

 animals and of man and the methods of preventing and controlling both. Or- 

 ganization as against causes of ill-health, sickness and premature death was 

 urged. The interest of the individual; the family; society; and the state in 

 the subject, and the obligations which it occasions were set forth. 



