"Respiratory system" Quotes from Famous Books
 ... the internal anatomy of these little creatures, his elaborate and patient dissections filling a great gap in our knowledge of their internal structure. The space at our disposal only permits us to speak briefly of the respiratory system. Lubbock found a simple system of tracheae in Smynthurus which opens by "two spiracles in the head, opposite the insertion of the antennae," i. e., on the back of the head. (Von Olfers says that they open on the prothorax.) Nicolet and Olfers ...
— Our Common Insects - A Popular Account of the Insects of Our Fields, Forests, - Gardens and Houses • Alpheus Spring Packard |
