Guide to the Study of Insects And a Treatise On Those Injurious And Beneficial to Crops : for the Use of Colleges, Farm-Schools, And Agriculturists
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In our eReader you can find the full English version of the book. Read Guide to the Study of Insects And a Treatise On Those Injurious And Beneficial to Crops : for the Use of Colleges, Farm-Schools, And Agriculturists Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Guide to the Study of Insects And a Treatise On Those Injurious And Beneficial to Crops : for the Use of Colleges, Farm-Schools, And Agriculturists
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To quickly assess the difficulty of the text, read a short excerpt:
Two of these ganglia occupy the head and form the oesophageal collar. The two others consist of a tho- racic and one abdominal ganglion. There are in Podura four pairs of stigmata in the four basal rings of the abdomen. Next to the two main tracheae are six pairs of rather long vesicles united with them by loops. (Gerstaecker.) Lubbock states that in Smynthurus there are but two spira- PODJRID^.
625 cles, adding that "it is A'cry unusual for an articulate animal to have only two spiracles, and ...their position is still more ex- traordinary^, for they open on the under side of the head, immediately below the antennsx}, ... on the inner side of the basis of the mandibles." "In the manner of subdivisions the trachejB of Smynthurus differ from those of the true in- sects, and agree more closely with the Myrio- poda and tracheal Arachnida, in the fact that thej^ do not often give otf branches nor form tufts, but gencrall}' divide dichotouiously, and run considerable distances without a separa- tion," (Mr.
What to read after Guide to the Study of Insects And a Treatise On Those Injurious And Beneficial to Crops : for the Use of Colleges, Farm-Schools, And Agriculturists?
You can find similar books in the "Read Also" column, or choose other free books by Metcalf Collection (North Carolina State University). Ncrs to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Two of these ganglia occupy the head and form the oesophageal collar. The two others consist of a tho- racic and one abdominal ganglion. There are in Podura four pairs of stigmata in the four basal rings of the abdomen. Next to the two main tracheae are six pairs of rather long vesicles united with them by loops. (Gerstaecker.) Lubbock states that in Smynthurus there are but two spira- PODJRID^.
625 cles, adding that "it is A'cry unusual for an articulate animal to have only two spiracles, and ...their position is still more ex- traordinary^, for they open on the under side of the head, immediately below the antennsx}, ... on the inner side of the basis of the mandibles." "In the manner of subdivisions the trachejB of Smynthurus differ from those of the true in- sects, and agree more closely with the Myrio- poda and tracheal Arachnida, in the fact that thej^ do not often give otf branches nor form tufts, but gencrall}' divide dichotouiously, and run considerable distances without a separa- tion," (Mr.
What to read after Guide to the Study of Insects And a Treatise On Those Injurious And Beneficial to Crops : for the Use of Colleges, Farm-Schools, And Agriculturists?
You can find similar books in the "Read Also" column, or choose other free books by Metcalf Collection (North Carolina State University). Ncrs to read onlineMoreLess
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