An illustrated key to the blackfly larvae commonly collected in New York State.

Mode of access: Internet.

Studies on Brazilian anophelines from the northeast and Amazon regions ...

"References" at end of each study.

An English grammar: comprehending the principles and rules of the language, illustrated by appropriate exercises, and a key to the exercises.

Mode of access: Internet.

A key to the symbolical language of Scripture : by which numerous passages are explained and illustrated : founded on the Symbolical dictionary of Daubuz, with additions from Vitringa, Ewaldus, and others /

"The principal writers on the subject of symbols."--Introd., p. 4.

On the mental illumination and moral improvement of mankind; or, An inquiry into the means by which a general diffusion of knowledge and moral principle may be promoted. Illustrated with engravings.

Mode of access: Internet.

The rise and progress of religion in the soul, illustrated in a course of practical addresses; with a devout meditation and prayer, subjoined to each chapter.

Mode of access: Internet.