46 PHOTOGRAPHY FOR NATURALISTS. 



With these general remarks one may come 

 to a consideration of the illustrations. 



Taking the newts first, as presenting the greatest 

 difficulty, we find that there are three very distinct 

 British species the palmate, the smooth, and the great. 

 They form together an admirable exercise for the 

 photographer-naturalist. In the first place, the bright 



Male Palmated Newt. 



orange coloration of the under surfaces in all three 

 species (we refer to the colour assumed during court- 

 ship) is difficult photographically, being of a very low 

 actinic power, and in the second place, if we compare 

 the females of the smooth and palmate varieties, we 

 find the differences so subtle as to be easily lost si<;ht 

 of, unless special care be taken to secure a distinct 

 representation of them on the negative. Further, we 

 have the difficulties of aquatic photography to contend 



