![A Virtual Treasure Trove show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/037/363/small/a-virtual-treasure-trove.jpg)
Summary: Small leather notebooks used by Italian born astronomer Pietro Baracchi are in the collection of the National Archives.
Summary: Small leather notebooks used by Italian born astronomer Pietro Baracchi are in the collection of the National Archives.