Intelligence and Miscellaneous Articles, 237 



A Committee was appointed to investigate the ravages of the 

 Cane-fly of Grenada, with a view to the suggestion of the most effi- 

 cacious remedies against its attacks. 



Aug. 4.— Lieut.-Col. W. H. Sykes, F.R.S., in the chair. The 

 report of the Committee appointed at the last meeting was read, 

 containing a variety of suggestions which were stated to have been 

 communicated to the Agricultural Society of Grenada. A curious 

 wasp's-nest built in the folds of a piece of paper, was exhibited by 

 Mr. Ingpen. Memoirs were read upon some new species of Ants 

 from the East Indies, with observations upon their habits, by Lieut.- 

 Col. Sykes; Description of a beautiful nondescript Lamia from 

 Sierra Leone, by Mr. Westwood. 



XXXIV. Intelligence and Miscellatieous Articles, 



m. breithaupt's mineralogy. 



SINCE the insertion of the notice from Professor Hausman in 

 the 26th Number of this Journal, our attention has been drawn 

 to the recent work of another mineralogical writer, Mr. Breithaupt, 

 by two specimens, named by him peganit and pegmatit. We do 

 not perceive upon what principle he has considered these to be new 

 species, as they appear to us only varieties of the wavellite of Fran- 

 kenberg. His kupferindig, we recollect, did not present any very 

 definite specific characters to us ; and if his other supposed new 

 species are not better established than these, we fear that his many 

 new names will rather embarrass than assist mineralogy, and that his 

 discoveries will belong to a class which, we believe, is denoted in 

 his own language by a term we cannot well translate, but which 

 refers their value to the number of sacks of toind they may be 

 worth. 



OBSERVATIONS ON THE TEMPERATURE OF ARTESIAN WELLS 

 IN DEGREES OF THE CENTIGRADE THERMOMETER, THE 

 DEPTHS BEING EXPRESSED IN METRES. 



In the Neighbourhood of Vienna. 



Depth. Temperature. 



73-96 1375 



34-14 11-6 



34-14 116 



1896 11-25 



Mean temperature of the surface .... 10-25. 

 Hence the temperature increases at the rate of 1° centigrade in 

 20 32 metres. 



Rochelle. 



123-16 1812 



Mean temperature of surface 1 1-87 



Or the temperature increases at the rate of 1° centigrade in 19-71 

 metres. 



Epinay. 



67 14- 



54 13*3 



12 11* 



