ADVERTISEMENT. 
In a work such as the Naturalist’s Library 
professes to be, it is not requisite to give a particu- 
lar preface to every separate volume ; but when we 
liave any notice of our future operations of an inte- 
resting nature to communicate to our readers, any 
accession .of strength to our list of learned contribu- 
tors, or any new discoveries in Zoology to lay before 
the public, we have much pleasure in doing so in 
the way of a simple advertisement. 
We are happy therefore to have now to mention, 
that it will very soon be our delight to bring out, 
a portion of the work, the first of a few vo- 
lumes by Mr SwAlNSON, who is well known to be 
°tte of the best zoologists of this or any other coiin- 
tty, and whose comprehensive and philosophic views 
cf the science of Natural History have for a long 
t'nae rendered any contribution from him equally 
interesting to the naturalist and to the ordinary 
reader. 
