No. 6.] AM. ASSOCIATION ADVANCEMENT SCIENCE. 379 



On Thursday the special work of the various Sections was 

 opened by addresses from the several vice-presidents, and con- 

 tinued from day to day until all the papers accepted had been read. 

 On Thursday, 24th inst.. Principal Dawson tendered the Asso- 

 ciation a reception in the new Peter Redpath Museum, which 

 was then formally opened. During a portion of the evening an 

 address on Caves and Cave Scenery was given in the Lecture 

 Theatre of the Museum, by Rev. H. C. Horey. Saturday, the 

 26th August, was devoted to excursions to Quebec and Ottawa, 

 in one or other of which nearly all the members present took 

 part. On Tuesday evening Dr. W. B. Carpenter, of London, 

 lectured in the Queen's Hall on the " Temperatures of the Deep 

 Sea." The Association adjourned on Wednesday, 30th August, 

 to meet in Minneapolis, Minn., in August, 1883. 



During the Session of the Association numerous receptions 

 were tendered the members by prominent citizens of Montreal, 

 and besides the larger excursions noted, smaller ones to the 

 Lachine Rapids and the Victoria Bridge and Grand Trunk Rail- 

 way Shops were provided for the unoccupied hours. A final 

 excursion to Lake Memphremagog was tendered the Association 

 on Thursday, August 31st, by the South Eastern Railway, and 

 was enjoyed by many of the members wlio remained to the end. 



The Montreal meeting was, with one exception, the largest 

 which has ever been held, the total number of names registered 

 being 937. One of the prominent features of this meeting was 

 the presence of several distinguished European scientists, such as 

 Dr. Samuel Haughton of Dublin, M. Rudolph Koenig of Paris, 

 Dr. J. H. Gilbert, well known in connection with investigations 

 in Agricultural Chemistry ; Prof. J. Szabo of Buda-Pesth ; Dr. 

 John Rae, celebrated as an Arctic Explorer; Prof. D. W. Kowa- 

 levsky of Moscow ; Dr. W, B. Carpenter of London. We append 

 a list of the papers read in the Chemical, Geological and Geo- 

 graphical, Biological, Histological and Microscopical, and Anthro- 

 pological Sections. 



CHEMISTRY. 



Thomas W. To bin : On the causes which render flour and organic 

 dust explosive, with suggestions for the prevention of such explo- 

 sionSi 



Leonard P. Kennicutt : Action of water at 100® C. on the B-phen- 

 yltribrompropionic acid. 



Albert R. Leeds : Preliminary notice of a new organic base. 



