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Image from page 59 of "Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature" (1867)

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Identifier: hardwickesscienc03cook
Title: Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature
Year: 1867 (1860s)
Authors: Cooke, M. C. (Mordecai Cubitt), b. 1825 Taylor, J. E. (John Ellor), 1837-1895
Subjects: Science Natural history
Publisher: London : Robert Hardwicke
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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Text Appearing Before Image:
-minister chloroform vapour, and then, with the sideof a needle, press the Podura gently on the thin glasscover, which has been previously cleaned. I some-times find they leap into the glass tube so violentlyas to die on the spot from their self-inflicted injuries. The Podura belongs to the order Thysanura, thecharacteristics of which, as extracted from the Micrographic Dictionary, are as follows :—Wings absent; not undergoing metamorphosis;not parasitic; mouth furnished with mandibles andmaxillaj; eyes simple, in two groups; abdomenmostly terminated by setse or a bifid tail. The Podura possesses about sixteen simple eyes,arranged in two groups, one on each side of thehead. Each group, containing eight, looks like acluster of beads.* The forked tail is not less curious in its structurethan in the use to which it is applied. When atrest it is kept in a groove under the abdomen, butit is brought into operation very effectively in caseof danger threatening its possessor. If the alarmed

Text Appearing After Image:
* It would appear that some species have 14 or only 12 eyes :there is often much difficulty in counting them. Fig. 3S. Tail of Podura, expanded, x 40. insect finds its legs cannot carry it into safe quartersquickly enough, it suddenly straightens out its tailhorizontally, thus striking a smart blow with it onthe ground. The force of the blow is sometimes sogreat as to cause the creature to rise into the airsome twelve inches or so, and then it alights in anunexpected place, whence it crawls away in security.I think a curious orgau (situated between the thirdpair of legs), which I also saw, on one occasion, usedas a sucker, when the Podura was walking in an in-verted position on the under-side of the cell-cover,assists the tail in the operation. The whole appa-ratus bears some resemblance to the ingeniouslycontrived wooden toy frog, which, by means of astring, a piece of wood, and a bit of cobblers wax,can be made to leap for the amusement of children.The antennae are four-jointed, and

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Date: 2014-07-30 11:43:46

bookid:hardwickesscienc03cook bookyear:1867 bookdecade:1860 bookcentury:1800 bookauthor:Cooke__M__C___Mordecai_Cubitt___b__1825 bookauthor:Taylor__J__E___John_Ellor___1837_1895 booksubject:Science booksubject:Natural_history bookpublisher:London___Robert_Hardwicke bookcontributor:MBLWHOI_Library booksponsor:MBLWHOI_Library bookleafnumber:59 bookcollection:biodiversity bookcollection:MBLWHOI bookcollection:blc bookcollection:americana BHL Collection BHL Consortium

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