# An Index to the Scientific Contents of the Journal and Proceedings of The Academy of Natural Sciences of Philadelphia

> publication (1913)

**Wikidata**: [Q125288271](https://www.wikidata.org/wiki/Q125288271)  
**Source**: https://4ort.xyz/entity/an-index-to-the-scientific-contents-of-the-journal-and-proceedings-of-the-academy-of-natural-sciences-of-philadelphia