A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insects, for use in agricultural and technical schools and colleges as well as by the working entomologist . Fio. 153. — Partial metamorphosis of Melanoplux femnr-rubrum, showing the five nymphstages, and the gradual growth of the wings, which are first visible externally in 3, Bl>, 3c. — Emerton 140 TEXT-BOOK OF ENTOMOLOGY first to be quite creased together. These wing-like wrinkles in the skin are notempty pouches, but contain tissues and organs within, which are connectedwith the skin, as the fa
A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insects, for use in agricultural and technical schools and colleges as well as by the working entomologist . Fio. 153. — Partial metamorphosis of Melanoplux femnr-rubrum, showing the five nymphstages, and the gradual growth of the wings, which are first visible externally in 3, Bl>, 3c. — Emerton 140 TEXT-BOOK OF ENTOMOLOGY first to be quite creased together. These wing-like wrinkles in the skin are notempty pouches, but contain tissues and organs within, which are connectedwith the skin, as the fat of the body, the net-work of tracheae, muscles, the tracheae, running through the former wing-pouches and accom-panied by the nerves, there are canals through which the blood flows in andout. A B.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects
