238 Review of the Principia of Newton. 
must uudoubtedly have produced a shower of meteoric stones. 
The comet and earthquakes of 1811, were seen and felt 
at Marietta at the same times, or nearly so, as they were at 
incinnati, as mentioned by Dr. Drake in his book of notices. 
That tremendous and extensive tornado, which visited this 
country on the 28th May, 1809, commenced at Marietta, at 
4o’clock P. M., just as the inhabitants were leaving church. 
It came directly from the west, but was attended with veins 
and currents, varying more or less from the general course. 
It blew down a number of buildings, and injured sever 
others in their roofs and chimneys: but the greatest damage 
was done to the forests. In many places where the veins 
of wind were strongest, scarcely a tree was left standing 
for a great many rods in width, and for a half mile or a 
strength of the hurricane was past in about fifteen or twen- 
ty minutes. 
Art. VL.—A Review of the Principia of Newton. 
RETROSPECTIVE reviews of works which long since have 
passed the ordeal of public opinion, may pest nicltse and 
unnecessary. If the character only of such works were the 
object of the review, and that had been established by the 
grand tribunal of the public, the individual sentiment of @ 
critic or a reviewer, would be of small amount; it would 
of any great work is necessary, if 
e would form a correct jud ; 
Syne eee judgment of the beauty and perfec- 
ton = the whole. Considered in this point of Jew, stots: 
