370 ANIMAL REPRODUCTIONS. 
of the hand, m, are vifible : the largeft not, above 
half a line in length. 
Vhe hand of ‘the left arm vies ett sad ; 
pent progrefs on the 21: it had expanded, 
and nearly acquired the figure peculiar to the. 
newt’s hand. The fingers alfo had extended, and 
become thicker in proportion. . The whole hand 
began to colour, and brown fpecks were alle 
guifhable on different parts ; they were more.evi- 
dent on the back of the hand than on. ‘the fin- 
gers. This will be better underftood by: fig. 12>) 
than any defcription can render,:it ; and, on 
comparing this with fig. 10; we obtain a more 
correct idea of the progreis. ‘of: evolution. a 
The reproduced arm is defi igned,: fig. I 4s! a3 
obferved on the twenty-firft.. ‘The. hand hag al- 
ready affumed its natural fhape,:and the. rapid 
progrefs of evolution is fufpending. Colouring 
of the arm begins near the trunk : but all the reft. 
is of a mixed gre and violet. oe 
‘Though i have not hitherto exprefsly {aid fo, it 
will obvioufly be prefumed, ‘that there is a kind 
of femi-tranfparency in the reproduced: parts, 
which the origmal members have not... This . 
continues long, and changes flowly as the repro- 
cudtions colour. ~The tran{fparency 1s evidently 
greater on the edges of the fingerp than elfe- 
where, if examined with a magnifier, they feem 
inclofed im a fine diaphanous envelope : but no- 
thing 
~ 
. 
ee 
