290 Lieut. G. Beaufoy's Astronomical Observations 1827. 



appearance through every modification of woody clay and 

 gravel, peat and beds of forest trees, that it is often difficult 

 to determine whether their real position be above or beneath 

 the crag. Certainly, near Cromer, the trees are a few feet 

 above the crag stratum, and are about the level of high water. 



Perhaps the most probable conclusions, to be derived from 

 a consideration of all these circumstances, are these : — 



That after the formation of the chalk, the waters deposited 

 the marine exuvije, and gave existence, during the long period 

 in which they occupied that portion of the former surface, to 

 those remarkable accumulations of crag shells which we now 

 witness. 



That the trees and vegetables covered various parts of the 

 surface of this new formation after it had become consolidated. 



That in this state, these woodland tracts afforded shelter and 

 support to certain animals, whose traces we find both amongst 

 the vegetable deposits and in the drifted heaps containing 

 marine substances. 



Finally : All were buried in one common catastrophe. The 

 same eruption of the waters that overthrew the pines and 

 forest trees, destroyed the herbivorous animals, and buried 

 the crag shells, beneath the ruins of more ancient strata. 

 [To be continued.] 



LVIII. Astronomical Obse7-vatio7is 1827. Bt/ Lieut. George. 

 Beaufoy, R. N. 



Bushey Heath, near Stanmore. 



LATITUDE 51° 37' 4.4"-3 North. "Longitude west in time 

 1' 20"'93. 

 Observed transits of the moon, and moo7i-culminating stars over 

 the middle of the transit instrument in sidereal time. 

 1827- Stars. Transits. 



Feb. 13. 62 g Leonis 10° 54' '1.7"-64 



13. 69 Leonis 11 04 56 -62 



13. Moon (18) 11 20 41 -16 



Eclipses ofjupiter^s Satellites. 

 Feb. 17th. Emersion off 12" 45™ 4P-06 M. T. at Bushey. 



Jupiter's 3d satellite . \ 12 47 01-99 M.T. at Greenwich. 

 Feb. 22d. Immersion of ( 14 28 23 '77 M.T. at Bushey. 



Jupiter's 1st satellite . \ 14 29 44 -70 M. T. at Greenwich. 

 Feb. 24th. Immersion of 1 14 00 25 -07 M. T. at Bushey. 



Jupiter's 3d satellite . \ 14 01 46 -00 M.T. at Greenwich. 

 Feb. 24th. Emersion of 1 16 42 21 -08 M.T. at Bushey. 

 Jupiter's 3d satellite . \ 16 42 42 -00 M.T. at Greenwich. 



LIX. Notices 



