Hauksbee's equipment for pressure experiments Size:XL: 90 x 60cm He raises his top hat

He raises his top hat in greeting or acknowledgement

'Fine Turkey Rhubarb

Recorder of London

one of the women is shading herself with a parasol

debate ensued and eventually the Lords withdrew the power of optional secrecy

Hauksbee's equipment for pressure experiments Size:XL: 90 x 60cm He raises his top hatPlate VI from Physico mechanical experiments on various subjects, by Francis Hauksbee (London, 1709), presented to the Royal Society by the author on 26 October 1709. Hauksbee (ca. 1660 1713) was elected a Fellow of the Royal Society in 1705, and was the Society's Curator of Experiments from 1703 to 1713. Original: copperplate engraving. 1709