Excerpt from Text-Book of Zoology: For Schools and Colleges
In bringing out a Text-book of Natural History, intended mainly for the use of schools, there are a few remarks which it may be as well to make by way of preface, if only to explain the principles upon which the work has been written.
In the first place, more space has been devoted, comparatively speaking, to the Invertebrate Animals than has usually been the case in introductory works, upon the belief that any practical Zoological work likely to be undertaken by young students will certainly be in connection with these rather than with the Vertebrate Animals.
Secondly, the Author has devoted considerable space to a discussion of the principles of Zoological classification, believing that it is of paramount importance that the student should have a clear idea of the principles upon which the Animal Kingdom has been systematically divided. At the same time, the introductory portion of the work is more especially intended for the teacher; and there is much in it that the learner may perhaps hardly understand till he has arrived at some clear idea of Natural History as a whole.
Thirdly, while the Author trusts that the style of the work will be found clear and intelligible, he does not believe in the existence of any royal road to learning in Natural History, any more than in any other department of human knowledge.
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