| Reference number | CLP/10iii/35 |
| Level | Item |
| Title | Paper, details about walnut and birch tree sap by unknown author |
| Date | [1670s] |
| Description | Portion of paper regarding the sap of walnut and birch trees and causes for the increase and decrease of sap over the course of a tree's lifetime.
Subject: Botany |
| Extent | 2p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Digital images | View item on Science in the Making |
| Access status | Open |