— 25 — 
Much has been done ; but the field of explorations is still 
very large and many centuries will pass before it is drained. 
Therefore, every one must work boldly and encourage 
every where these studies which are unhappily too much 
leaved off at the present time. 
For that, it is necessary that all those who have zoolo- 
gical riches accumulated, give their duplicates to scientific 
Institutions or to young and poor amateurs, or dispose of 
them at very low prices accessible to every one. 
It is also necesary that all the governments give important 
prize, and rewards to all those who make new discoveries 
useful to their country, and encourage by all means the study 
of this science which can produce fruitful result in benefit of 
humanity. 
