This is a massive 600+ page PDF collection of wonderful nature study lessons developed by Cornell University in the early 1900s for use in rural schools in the US.  The first section of studies is for teachers, the second section is studies for children. It is amazing.

This was the primary source from which Anna Botsford Comstock derived her famous “Big Book of Nature Study”.

There’s a ton of great material in here, be sure to check out the children’s studies in particular.

To download this ebook, RIGHT CLICK HERE  and “save” to your computer.

Mac users: Press the “control” key, then click the above link and “save” to your mac.