380 Scientific Iirtelligence — Meteorology. 



tion into Scotland of granite for ornamental purposes by Messrs 

 Macdonald and Leslie, Aberdeen (published in this No. p. 3-41). 

 Mr Torrie read a communication on the habits and structure of the 

 Tinamus Guianensis by Dr Frazer, late of Demerara. Various 

 Meteorological Tables were laid on the table. 



SCIENTIFIC INTELLIGENCE. 



MBTEOKOLOGY. 



1. Variation of Temperature during the Russian Expedition 

 to Khiva. — It has been stated to the Academy of Sciences by a 

 Russian officer who had accompanied the army to Khiva, that dur- 

 ing the expedition, the thermometer fell to — 43° C. (— 45'^.4 

 Fahr.) ; that for more than three months the mean temperature was 

 between — 17° and — 18° (+ 1°.4 and — 0.4 F.) ; and that dur- 

 inor their I'eturn, in the month of June 1840, the thermometer roso 

 to + 46° C. (+ 114°.8 F.) Thus, in the course of a few months, 

 the troops were exposed to a variation of 89 degrees Centigrade, or 

 160 degrees Fahrenheit. 



2. On the Movement and Structure of the Mer de Glace of Cha- 

 mouni. — On the 27th February 1843, Professor Forbes read a me- 

 moir before the Royal Society of Edinburgh " On the Motion of the 

 Mer de Glace of Chamouni." 



The author detailed in this paper the methods of observation by 

 which he was enabled to ascertain the daily and even hourly motion 

 of different parts of the glacier. 



The following are some of the principal results : — 



I. In the particular case of the Mer de Glace, the motion of the 

 hiorher parts of the glacier are on the whole slower than those of its 

 lower portion, but the motion of the middle region is slower than 

 either. 



The following table, the result of observations at a series of ascend- 

 ing stations, will authorize this conclusion. 



Velocity. 



. . ( 1.000 



Ivowerpart, \ 0.770 



Middle do., 0.479 



Higher do., 0.674 



II. The Glacier du Geant moves faster than the Glacier de Lechaud 

 in the proportion of 7 to 6. 



III. The centre of the glacier moves faster than the sides. When 



