"Miss S. E. P.," St. Joseph, Michigan, makes the following inquiry respecting the beautiful wood laurel: "Is Kalmia latifolia perfectly hardy, if not, would it flourish in a greenhouse? Is Aristolochia elegans all somebody's fancy has painted it? I have been a faithful student of the Monthly for many years. There is no literature so welcome and delightful as that found in its pages".

[Some plants of the family of Ericaceae, to which Kalmia belongs - Rhododendron for instance - do not do well in limestone soils. It is many years ago since the Editor was at St. Joseph, but to the best of his recollection the town is on a high limestone bluff, and this may be against success with the Kalmia. It is not probably the limestone itself that proves inimical to these plants, but the pasty soil that results from decomposed limestone. These plants have very fine hair-like roots, that require a large amount of moist air, and hence they thrive only in what is called a spongy or porous soil. The Editor has seen the Mountain Laurel, Rhododendron maximum, thriving among loose limestone rock where the debris had a chance to wash away, in the Allegheny Mountains. It is more than likely that if a little care was made to arrange a porous soil, as we would for Rhododendrons, the Kalmia would be hardy at St. Joseph, and similar situations. A plant is tender, or gets killed under a low temperature, when it is not perfectly healthy through improper soil.

In a tub or large pot for a greenhouse or conservatory, the Kalmia ought to do admirably, because there should be no difficulty, by adding quantities of broken stone or brick, in making the earth as porous as desirable. - Ed. G. M].