Synopsis of the Flora of Colorado is a comprehensive guide to the plant life of Colorado, written...

Flora of Pennsylvania is a comprehensive guidebook that provides detailed information about the n...

Flora of Pennsylvania

The Pennsylvania-German in the Field of the Natural Sciences

This work has been selected by scholars as being culturally important, and is part of the knowled...

The Life and Labors of St. Augustine

In this classic biography, Schaff and Porter offer a comprehensive overview of the life and work ...

A List Of The Grasses Of Pennsylvania

This classic work of botany provides a comprehensive listing of the grasses found in the state of...

Delve into the heart of the Swiss Reformation with 'The Life and Times of Ulric Zwingli' by Johan...

Delve into the heart of the Swiss Reformation with 'The Life and Times of Ulric Zwingli' by Johan...

Flora of Pennsylvania, originally published in 1903, is a comprehensive catalog of the plant life...

Flora of Pennsylvania, originally published in 1903, is a comprehensive catalog of the plant life...