cover on it. A portion of the cover was occasionally lifted to 
renew the air inside the dish. 
My observations are as follows :— 
1) It was observed that the Gecko could conveniently 
stick to a smooth, vertical surface. When in motion on such 
a surface the whole of the weight of the body was supported by 
the digital discs, but when at rest, the limbs were stretched 
outwards and the belly was pressed against the opposing 
surface. Under these circumstances, it so appeared. that 
a part of the weight of the animal was supported by the belly. 
2) It was found that the adult Gecko could not hang 
from a perfectly smooth surface back downwards. A young 
individual about 30 mm. in length without the tail was, 
however, able to suspend itself back downwards froma smoot 
surface. In this condition its belly was pressed against the 
smooth surface and its limbs were stretched considerably 
outwards. It was found on irritating this young animal that 
it was not able to move about freely in this position since 
almost every attempt at movement on the part of the animal 
resulted in a fall 
against rough surfaces, such as a piece of blotting paper, 
it was totally different. The animal under these circumstances 
was not able to climb up even a vertical rough surface. 
_ (5) It has been found that even a single claw of the 
animal is sufficiently strong to bear the whole of its weight, 
provided that the claw had previously taken a firm hold on 
the opposing surface. 
(6) It was observed that the pads on the fingers of the 
Gecko were not quite so efficient on vertical smooth surfaces, 
which had been wetted, for the animal was found to slip ever 
on those which had an inclination less than a right angle. 
_ (7) Considerable friction was felt below the pads when the 
animal was drawn backwards by the hand, but when it 
