140 Wliilehaven Society. — Haerlem Society. 



Secretaries. 

 C. Babbagk, Esq. M.A. F.R.S. L. &i E. 

 F. Bah.y, Esq. F.R.S. & L.S. 

 J. F. W. Herschei., Esq. M.A. F.R.S. L. & E. (Foreign.) 



Council. 

 Capt. T. Colby, Roy. E?i[^. LL.D. F.R.S. L. & E. 

 Sir H. C. Englefirld, Bart. F.R.S. L. & E. F.S.A. & L.S. 

 Davies Gilbert, Esq. V.P.R.S. & F.L.S. 

 B. Gomfertz, Esq. F.R.S. 

 O. G. Gregory, LL.D. 

 J. Rennie, Esq. F.R.S. L. & E. S.A. & L.S. 

 J. South, Esq. F.R.S. 

 E. Troughton, Esq. F.R.S. 

 The Names, under each Office, are arranged ali^habetically. 



WHITEHAVEN PHILOSOPHICAL SOCIETY. 



At the last anniversary of this Society, two specimens of meat 

 cured with the pyroligneous acid were exhibited. They were pre- 

 pared on the 7th of September, 1S19. One was hung up at 

 home, and the other sent out to the West Indies, to try the effect 

 of climate upon it, and brouglit back on the return of the ship 

 to that port. Both specimens vvere pronounced by all present 

 who tasted them, to be perfectly fresh, sweet, and fit fur use, 

 after a lapse of 15 months. 



HAERLEM PHILOSOPHICAL SOCIETY. 



This Societv has proposed the following prize questions : me- 

 moirs in answer to be received till 1st January 1822. 



" What is known respecting the nature, habits and productions 

 of those little insects which prove so injurious to plants cultivated 

 in hot-houses? and what method does this knowledge suggest for 

 preventing their propagation, or for their extirpation ? " 



" As large hot-houses are now heated by steam in England, 

 might not our small hot-houses be heated by the same means ; 

 and what would be the best apparatus for this purpose ? " 



'^ Has it been clearly proved by experience, that there are cer- 

 tain trees and plants, particularly of the most useful kinds, which 

 cannot vegetate close by each other ? What experiments can be 

 adduced as proofs of this ? Can this antipathy be accounted for 

 by what we know of the nature of plants ? and what useful infor- 

 mation does it afford for the cultivation of trees and useful 

 plants ? " 



*' What insects are most injurious to trees and shrubs in fo- 

 rests ? In what do their injuries consist ? What are the proper 

 remedies to prevent such injuries, or to remedy them ?" 



" What is known respecting the economy of moles ? and what 



means 



