In the fall of the year it is not uncommon to see a fly, dead, and attached to a pane of window glass by a small, webby fungus, which has grown from the fly. This form of fungus is similar to that which is found in the mucous membrane of those who are attacked by diphtheria. At a recent meeting of the Delaware Co. Institute of Science, Dr. Eckfeldt read an essay on the " Diseases of the Common House Fly." It is a common thing to see these insects on windows and elsewhere sicken and die. The disease has been found to depend upon the ravages of one of the lowest forms of fungus growths, resembling those seen on bread and sour paste. This fungus is known as Botrytis dassiana.

At the same meeting, Col. Joseph Willcox presented to the museum eighty specimens of plants from Thomas Meehan, of Germantown.

These were collected by Mr. Meehan, Col. W., and others on their visit to the mountain region of North Carolina in the summer of 1880. Many of them are rare, and were wanting in our herbarium. Some of them are not found growing south of the White Mountains of New Hampshire except in these mountains.

Dr. Eckfeldt writes that the disease in the house-fly, noted in our July number, was not merely from Botrytis bassiana; for other undetermined species of the same genus freely occurred in all the specimens he examined.