DEVELOPMENT OF THE COMMON FROG. 113 



through the gill-opening. The right fore limb had the 

 palm turned as usual towards the body. The liver was 

 larger than before,, and occupied more than half the abdo- 

 men. The intestine was much shrunk ; and the helix-like 

 coil did not face forwards as formerlv, but was at the left 

 side and very much reduced in size. A drawing was made 

 showing these particulars. 



77 (3). The liver and intestine were removed; and an 

 enlarged drawing of them was made with the intestine 

 pulled out, to compare with that represented in 73 (4). 

 The intestine was much shorter than it had been ; and the 

 part corresponding with the middle of the spiral was re- 

 markably shrunk both in length and diameter. 



Plate XX. 



79. A tadpole in which the fore legs had lately come 

 out was taken for examination. An enlarged drawing 

 was made of the right side, showing that the right fore 

 limb had been pushed out through a ragged hole in the 

 skin. 



79 (2). The left fore limb had come out through the 

 gill-opening, which, being too small to allow it to pass, 

 had its posterior border torn. This appears to be invari- 

 ably the case. A sketch was made representing the part. 



79 (3) . The abdomen was wonderfully contracted ; and 

 the fascia beneath the skin was very distinct from it. On 

 opening the abdomen, the greater part of the cavity was 

 seen to be occupied by the liver. The gall-bladder was 

 large, round, and of a bright-green colour. The intestine 

 was quite empty and of a delicate flesh-colour, and it was 

 reduced to a very small size compared with that of the 

 tadpole in its earlier stages. The mouth was a transverse 

 opening, with the lips consisting of the ordinary skin. An 

 enlarged drawing was made of the liver and alimentary 



