# Bark-louse and pear-tree slug

> [Toronto?]: Dept. of Agriculture, 1891.

**Wikidata**: [Q51445371](https://www.wikidata.org/wiki/Q51445371)  
**Source**: https://4ort.xyz/entity/bark-louse-and-pear-tree-slug


## References

1. Biodiversity Heritage Library
2. Internet Archive