Cloud research notes

Notebook of physicist and Charles Thomson Rees Wilson FRS. This page from Wilson's laboratory notebook relates to experimental work on the formation of clouds in 1895
Illustrated with the drawing of the experiment, the text describes the process and observations of the formation of fog when allowing air to enter from the outside into a controlled receptacle. On the top a reference to 'Note sur la nouvelle propriété de l'air' by Paul-Jean Coulier in the Journal de Pharmacie et de Chimie. The notes relate to the work of the latter whom, in 1875 discovered that artificial clouds could not be produced inside glass flasks if the air within them was filtered by cotton wool.
His work in replicating clouds in the lab would lead to his invention of the cloud chamber, and ultimately the Nobel Prize in Physics in 1927 (divided by Wilson and Arthur Holly Compton). Wilson's cloud chambers enabled physicists to see the tracks of particles passing through supersaturated air, as they created a trail of condensation. It became one of the basic tools with which physicists attempted to understand cosmic rays and the building blocks of Nature.