74 



Eighth Meeting — February 21. 

 The President in the Chair. 



PUBLIC BUSINESS. 



Mr. Yates exhibited a specimen of what was called Mineral 

 Caoutchouc, from the coal fields in the neighbourhood of 

 Sheffield. 



Mr. Higgixsox exhibited four plants from Norfolk — 

 Tencrium chaincedrys, Atriplex peduneulata, Trifoliuni glome- 

 ratura, and Suffocatum. 



Mr. Higgixson stated that he had seen a plan for ventdating 

 sewers, by means of consuming their fold air by the heat of 

 furnaces, advocated in the Health of Towns' Journal recently 

 established, where the credit of the invention was given to 

 one or two different individuals ; and called attention to the 

 fact, that he had himself proposed the plan some years 

 ago to the Society, in a short essay upon the subject. 



Dr. Hume, Dr. Duxcax, and Mr. Yates, aU stated their 

 recollection of Mr. Higginson's having advanced these views 

 some years ago. 



