146 A METEOROLITE. 
disintegration, and especially such as consists of 
conjoined small pieces, and the whole of the soil thus 
formedis of considerable value in general agricultural 
affairs ; the practice however of mixing lime with 
it, must not be understood to have any useful chem- 
ical effect, though in the first instance of this soil 
being brought into use for for farming purposes, a 
smalladmixture of that substance may be accounted 
necessary to Supply that proportion required by all 
plants, but especially corn and vegetable crops. 
A little while ago, a flattened oblong stone was 
handed to me for examination, which had been dug 
out of clay with many fragments of limestone, the 
whole resting on a bed of limerock in the parish of 
Plymstock. From its great weight, its having a 
crust or envelope, and from bearing a strange im- 
pression in one part of it, I hoped I had found a 
meteorolite, and took it accordingly to be examined 
by Mr. Prideaux of Plymouth ; though at first dis- 
posed to favor my idea, he at length, after due in- 
vestigation, decided on its being “‘ magnetic tron 
stone,” and the only curious portions of its history 
were its having the impression or regular shaped 
pit, and its being found in such a situation far 
removed from any bed of this kind. I. named 
to Mr. Prideaux at the same time, that near the 
spot where this stone was discovered, another, 
equally curious in appearance, had been taken up 
from a depth of several feet in the clay some few 
years ago, and upon giving him the following ac- 
count of it, he pronounced his opinion that it cer- 
certainly was a.meteorolite. Unfortunately the 
description was afforded from memory, the specimen 
having been most provokingly lost; it was of the size 
of the head of a child a year old, and might have 
