The Basal Connections of the Tracheae of the Wings of Insects (Classic Reprint) - Hardcover

Chapman, Royal Norton

9780331284478: The Basal Connections of the Tracheae of the Wings of Insects (Classic Reprint)

Hardcover

ISBN 10: 0331284472 ISBN 13: 9780331284478

Publisher: Forgotten Books, 2018

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Excerpt from The Basal Connections of the Tracheae of the Wings of Insects

A desire on the part of Professor Comstock to have ascertained the exact nature Of the basal connections of the trachea Of the wings in different orders of insects, in the hope that this knowledge would throw light on this problem, led him to suggest the making of the investigation the results of which are given here.

Another condition that suggested the same question is the fact that in the Odonata the branches of the medial trachea invade the region of the trachea Of the radial sector, which becomes greatly reduced. If the medial trachea has a better air supply than has the radial trachea, this invasion can be understood.

The references to the basal connections Of the wing trachea which have been found in literature are few and fragmentary. SO far as can be deter mined no general study Oi the subject has been made previously. How ever, various authors, while workin g on closely related subjects, have noted and described the conditions in certain forms. These descriptions may be best referred to in the parts of the paper relating to these various forms.

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