Chap. II.
THEIR WIDE DISTRIBUTION.
127
seems to have best retained its original size and appearance. Notwithstanding some loss from disintegration, five of the largest of these castings (after having been well sun-dried) weighed each on an average 89.5 grammes,
Fig. 4.
A casting from the Nilgiri Mountains in South India; of natural size, engraved from a photograph.
or above 3 oz.; and the largest weighed 123.14 grammes, or 4⅓ oz.,—that is above a quarter of a pound! The largest convolutions were rather more than one inch in diameter; but it is probable that they had subsided a little
