: An Introduction to Entomology: Vol. 3 or Elements of the Natural History of the Insects by Kirby William Spence William - Insects; Insect pests; Insect societies; Insects History; Beneficial insects; Insects Host plants; Insects Life cycles; Insects Habit

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Letter. Page.

It being judged expedient, since the publication of the last Edition of the first and second Volumes of this Work, to adopt a new plan with respect to the reference letters of the Plates, the Reader is requested to make the following corrections in those Volumes.

Page. Note.

AN

INTRODUCTION

TO

ENTOMOLOGY.

This system he has represented by tables of circles inscribed with the five primary divisions of each group. His first table exhibits a general view of organized matter as distributed in the animal and vegetable kingdoms--Thus:

Our learned author here divides the animal kingdom into what may be denominated five sub-kingdoms or provinces, in three of which no circulation of blood is visible, but which obtains in the rest. These he names--

His next set of circles shows the sub-division of these five sub-kingdoms into classes--Thus:

Sub-kingdom ANNULATA Cuv.

But there is another view of this subject before alluded to, which may be repeated here, and which seems to prove that the types of form in one natural group or class are reproduced in another; this appears to result from the following parallel series:

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