382 



ZOOLOGY. 



[Sect. XI. 



Seel 



soTithern cetaceans and seals slioiild be preserved, tbe sex 



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As the oreater portion of the smaller mammals are of 

 nocturnal habits they can seldom be procured without the 

 aid of traps, which must be baited some with flesh, or a 

 lead bird, some with cheese, bread, fruits, ^c. ; small 

 pits, widest at the bottom, and baited, often serve to 



entrap small quadrupeds. 



Necessary materiohfor determining Species. — In almost 

 all cases the zoologist is desirous of examinhig more than 



pecimen— in fact, of having before him at least a 



sT)ecimen of the male, female, and young animal, and also 



one or two skulls, before he can give a satisfactory 



description of a new species, that is, such a description 

 that the animal may be with tolerable certainty identified 

 throush its means. When one specimen only can be 

 procurcdj the skull should not be injured ; a little extra 

 time is well spent in removing the brain through the 

 occiplul opening, the baok part of the skull being of 

 great importance. When the species are small, and 

 several specimens can be procured, one at least should 

 always be preserved in spirit or solution. 



The Human Race. 



The chief points to which the attention of the philo- 

 sopL' J and zoological voyager should be directed towards 

 the advancement of this most important branch of Natural 

 History are included in the following queries : 



What is the average or general stature and weight of the individuals^ 

 and ike extreme cases ? 



Is there any prevailing disproportion iu the size of the head ? ot the 



I- ^er or lo^er extremities ? 



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