250 Notices of Books. (April, 
us from the stars, information respecting the structure of those 
orbs, we have equal reason to contemplate with interest the re- 
Fic. 18. 
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Respicghi’s observations of the Prominences round the entire limb of the Sun. 
cognition of the existence of the 10,o0oth part of a grain of some 
eleinent in solution, or of yet minuter portions, by the use of the 
