8 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
black patch the size of a saddle. This young one is larger 
and stronger than the one born last. April 30th. The 
Alpaca born yesterday is so stong as to be turned loose 
with its dam to roam about the grounds.” 
There are several records of female kangaroos dying 
while they had young ones in the marsupial pouch. In 
at least one case the attempt was made to bring up the 
young creature by hand. However it only lived for about 
a fortnight, durmg which time it sucked from a bottle. 
The following observation is interesting :—‘‘ October 16th, 
1844. John Barron while cleaning his kangaroo den this 
morning saw one of the Jerboa Kangaroos (Bettongia 
penicillata, Gray) give birth to a young one. He dis- 
tinctly saw her drop it on the boards of the den, and 
immediately take it up with her mouth and forefeet and 
put it in the pouch. It was very small, not bigger than 
a new born mouse, and was of a blood-red colour: it 
kicked about very much.” This by the way is the species 
of kangaroo which carries about wisps of straw held in a 
loop of the tail when making its nest. A stuffed specimen 
in the Liverpool Museum shows this habit. 
Many of the entries in the journal give information as 
to the dates and periods of breeding and development of 
the animals, and as to interesting crosses between differ- 
ent species. Here is an instance:—‘‘ April 8th, 1844. 
The Summer Duck paired with a female Mandarin 
Duck. These are two very distinct forms belonging 
however to the same genus. They are widely separated 
in their geographical range, the Summer Duck being 
from North America and the Mandarin from China. 
Here is another interesting case in connection with the 
breeding of birds:—The black Swans brought from 
Australia not only bred freely at Knowsley, but bred 
twice in the year. They evidently had become subject 
