...I think this system is the one that most commends itself from itsclearness, but there are hardly two writers on ethnology who keepto the same classification... 
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...
The following is the classification at present adopted: SUB-ORDER
Ruminantia, containing two sections, viz...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...The following is the classification at present adopted: SUB-ORDER
Ruminantia, containing two sections, viz...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...The tongue has always been considered such an important feature in a bee's structure that it has been made the chief basis of their classification...
Edward Saunders 「Wild Bees, Wasps and Ants」
...Some new facts, published here for the first time, tend to sustainthe accuracy of this classification...
Elizabeth Cabot Cary Agassiz 「Seaside Studies in Natural History」
...Acomparison of the embryonic and adult forms in these orders, confirmsentirely this classification based upon structural features...
Elizabeth Cabot Cary Agassiz 「Seaside Studies in Natural History」
...—Remarks on Classification, &c...
Henry J. Slack 「Marvels of Pond-life」
...HE creatures described in the preceding pagesrange from very simple to highly complicatedforms, and in describing them some attentionhas been paid to the general principles of classification...
Henry J. Slack 「Marvels of Pond-life」
...Recent reviews by Brattstrom (1957) and Hecht (1962,1963) have been concerned with general salientian classification and phylogeny,principally at the family level...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...The classification of the breeds cannot, as far as I can see, be made natural...
Charles Darwin 「The Variation of Animals and Plants Under Domestication, Vol. I.」
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