# Invertebrates

Free to read here, from Project Gutenberg.

4 titles; page 1 of 1.

- [Half hours with the lower animals](https://invisiblenetwork.ai/books/gutenberg/52085) by Charles Frederick Holder
- [Jelly-Fish, Star-Fish, and Sea-Urchins: Being a Research on Primitive Nervous Systems](https://invisiblenetwork.ai/books/gutenberg/46607) by George John Romanes
- [The Common Objects of the Country](https://invisiblenetwork.ai/books/gutenberg/54623) by J. G. Wood
- [The intelligence of invertebrate animals](https://invisiblenetwork.ai/books/gutenberg/78604) by Maynard Shipley