4 



■Mr. Teschemacher had also received from Dr. Monticelli 

 specimens of sulphuret of lead and zinc in Vesnvian lava : 

 their occurrence in this situation was singular, particularly 

 the latter, which would volatilize in a heat probably less 

 than that of melted lava. 



In order to secure a more full attendance of the members 

 of the Society, to ensure a greater number of communica- 

 tions on the different departments of Natural History, and 

 more effectually to promote the objects of the Society, it 

 was proposed by the President to divide the members into 

 committees on the following subjects, viz : Botany, Ichthy- 

 ology and Herpetology, Conchology, Ornithology, Geology, 

 Mineralogy, Entomology, Zoology, Books and the Library ; 

 the different committees in turn to be responsible for reports 

 and communications at each meeting. 



The proposition was unanimously adopted ; and the fol- 

 lowing gentlemen were elected to fill the different commit- 

 tees : 



1. Botany. — Messrs. Teschemacher, Eddy, Tuckerman, J. H. 



Abbot, Gould, T. A. Greene. 



2. Ichthyology and Herpetology. — Drs. Storer, S. L. Abbot, 



J. B. S. Jackson, Wyman, Bigelovv. 



3. Conchology. — Gould, Binney, E. S. Dixwell. 



4. Ornithology. — Abbot, Brewer, Bryant, Wyman. 



5. Geology. — C. T. Jackson, Bulfinch, Williams, Alger, Bouve. 



6. Mineralogy. — Gay, Bouve, Channing, Hayes, Bacon. 



7. Entomology. — Harris, Bowditch, Randall, Gould. 



8. Comparative Anatomy. — J. B. S. Jackson, Wyman, Shurtleff, 



Bigelow. 



9. Zoology. — Wyman, Bigelow. 



10. Books and the Library. — Dillaway, Sherwin, Robinson. 



Dr. Storer stated that Dr. C. T. Jackson, in reference to 

 the subject introduced at the last meeting, had signified his 

 intention of removing his collection of mineralogical and 

 geological specimens. 



The President remarked that it was desirable that the 

 Geology and Mineralogy of our own State should be repre- 

 sented in preference to that of any other State or country. 



