Knowledge of natural history, revfrom Reason why: natural history, giving reasons for hundreds of interesting facts in connection with zoology; and throwing light upon the peculiar habits and instincts of the various orders of the animal kingdom . outer edges or surfaces of the two fingers, theperson will believe that he touches two marbles,although he knows that only one is present. Theexplanation of this illusion is as follows: Themind refers, involuntarily, all sensations experi-enced at different parts of the body to theposition in which such parts are usually the crossing of th
Knowledge of natural history, revfrom Reason why: natural history, giving reasons for hundreds of interesting facts in connection with zoology; and throwing light upon the peculiar habits and instincts of the various orders of the animal kingdom . outer edges or surfaces of the two fingers, theperson will believe that he touches two marbles,although he knows that only one is present. Theexplanation of this illusion is as follows: Themind refers, involuntarily, all sensations experi-enced at different parts of the body to theposition in which such parts are usually the crossing of the fingers does not preventus feeling either of them in contact with themarble, as if they were placed naturally side byside. But in the habitual position of the fingersside by side, it is impossible that the outeredges of any two fingers can be at the sametime placed in sufficient contact with a singlemarble or other similar rounded body; and thuswhen such contact actually takes place simul-taneously, by the contrivance of crossing the fingers, then the mind invol-untarily believes the thing to be impossible, takes it for granted thattwo marbles, not one, must be present; and hence arises the sensationand perception of two distinct CHAPTER V. CLASSIFICATION OF THE VARIOUS ANIMALS. 161. Why are animals arranged by naturalists intoclasses, orders, sub-orders, families, Classification prevents the necessity of frequently andfully describing any animal referred to; it ensures correctidentity in the observations and communications of natural-ists. It also answers as a sort of dictionary wherein, fromthe properties of things, we proceed to discover their names,thus forming the inverse of ordinary dictionaries, where thenames direct us to the properties. But no arrangement ofanimals can be perfect; first, because we may not be ac-quainted with all the species; secondly, because of someof the species we may know very little; and, thirdly, becauseof those which we know be
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1916
