January 2, 1778
Posted by sydney on Jan 2nd, 1778
There is reason to fear that the plasterer has done a mischief to the last coat of my battin-plaster that should carry the paper of my room by improvidently mixing wood-ashes with the morter; because the alcaline salts of the wood will be very long before they will be dry at all, & will be apt to relax & turn moist again when foggy damp weather returns. If any ashes at all he should have used sea-coal, & not vegetable ashes; but a mixture of loam & horses dung would have been best.