M. S. B, Portland, Oregon, writes: "I should be glad to be informed through the Gardener's Monthly, or otherwise, how to construct ' Lime floors' for cellar bottoms, and how long after making before the floor can be used.

"Is sand to be mixed with lime after the slacking; and is lime considered as good a cement for cellar bottoms where there is much dampness?"

[Lime for cellar floors should be "drawn" through water as plaster is - not slacked as it is when masons use it for brick or stone work-After being taken out of the water, it may have from one-half to three-fourths of its bulk of sand, gravel, or any hard material mixed with it. It will not "set" or crystalizc as mortar does. Its solidity will depend on the pressure it receives. It will take two or three weeks to dry, the time varying according to the dryness of the cellar. In a very damp cellar it may never get hard - we have had no experience - for the hardening is due to drying, and this to evaporation. - Ed. G. M.]