|Alternative reference number||LBO/15/260|
|Title||Copy letter from Antoni van Leeuwenhoek to the Royal Society|
|Date||13 June 1722|
|Description||Written at Delph|
' Containing microscopical Observations upon a Foetus and the parts of generaltion of a Sheep. '
Translated by D Sprengell FRS
Read at the Royal Society on 8 November 1733
Includes engraving of three figures