An easy mode of ascertaining the capabilities of soil : tests for the purity of artificial manures : mode of preserving the fertilizing contents of a dung-heap from escape, &c. &c. / by John Robinson.

Licence: Public Domain Mark

Credit: An easy mode of ascertaining the capabilities of soil : tests for the purity of artificial manures : mode of preserving the fertilizing contents of a dung-heap from escape, &c. &c. / by John Robinson. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.