H. W. S. says: "I send you enclosed a few specimens of this year's growth of Deodar Cedar, Scotch Larch, Golden Norway Spruce and the American Hemlock, and also Mahonia, as representing more or less almost every evergreen and many deciduous trees on my place, the result of some unsual atmospheric or electrical effect from the hot weather recently. Even trees in the shade and fruit trees (plums especially) under glass are equally effected. I have one large Norway Spruce sixty to seventy feet high in a group of three, perfectly drab in color, while its two companions are untouched. Many White Pines and entire Hemlock and Norway hedges are more or less scorched or blasted, and of course disfigured for the season. Abies Parsonsi or las-ciocarpa seems particularly sensitive. Every year this neighborhood is liable to this attack, and of course it is impossible to contend against it. I write this simply to know if other persons are similarly effected. With me it has become such a serious matter that it is a source of great discouragement.

In connection with this annual misfortune, there is another disheartening thing. The sud-den and inexplicable dying off of fine healthy plants of Clematis. You leave them at night in perfect health, apparently, to find them next morning dead or dying. A prominent nurseryman wrote me this fatality in Clematis made a difference of $500 a year to him. W. Jack-man writes me they suffer equally in England. It seems equally uncertain to plant Clematis in pots or the ground, they are sure to go sooner or later. I should say a third, certainly a quarter of every collection disappears every year in the Summer, no matter what treatment they receive whether coddled or neglected.

We have this year had a curious epidemic in Arbor vitae hedges. Most of the hedges whether old or young, are killed or nearly so, while the more tender evergreens are uninjured".

[It will certainly be interesting to know if others have suffered as H. W. S. has. In this part of the world, Philadelphia, we have nothing like it. In past years hedges of Hemlock and Arbor vitae severely pruned, have had their leaves mildewed, the appearances being much as in the specimens sent; but the remedy to let the hedge off with less pruning the next year has been successful. But it is said that this trouble comes from unpruned trees in our correspondent's case.

The Clematis trouble is an old one, and has before been noted in our pages, but it was not known to exist also in England. There are two enemies to it here; one is an insect very similar in its effects to the phylloxera. The roots are all granulated and destroyed as they grow, as in grape vines similarly infested. The plants " dwindle away" in this condition. The sudden deaths come from a huge borer. Some years ago the Editor sent specimens to Prof. Riley; but does not remember what Mr. Riley made of them. - Ed. G. M].

- '