Faraday to Jacob Herbert   16 June 1855

Royal Institution | 16 June 1855

My dear Sir

The waters as they came to me in the bottles were not bad¹. That labled Assistant light keeper was very good being soft, without colour, or taste; free from organic matter, and also from lead. It contains only small quantities of sulphate of lime & chloride of Sodium substances which might very properly be present. The water labled Principal light keeper was also soft & good in respect of taste, smell, & saline matters, but there was a little organic matter (I do not know what its source may be) which gave it a little colour and there was also a small trace of lead; very small but still distinct. There was no sediment of lead in either of the bottles[.]

Ever My dear Sir | Very truly Yours | M. Faraday

Jacob Herbert Esqr. | &c &c &c