Among the Essays prepared and to be read at the September meeting of the American Pomological Society, are the following:

Hon. W. C. Flagg, Illinois, on Diseased Apple Trees, and their Cause.

Wm. Saunders, Esq., District Columbia, on Theory and Practice of Pruning.

Thomas Meehan, Esq., Pennsylvania, on Fungi on Fruit, and Fruit Diseases, as Cause, Result, or Concomitants of one another.

P. J. Berckmans, Esq., Georgia,on Cause, Remedy, or Preventative of Pear Blight.

In addition to the above, the following named gentlemen have been invited, and are expected to prepare short, condensed practical essays, or papers, as follows:

Prof. Louis Agassiz, of Harvard University, Massachusetts, on the Geological Age of Fruit-bearing Plants.

Dr. John Strentzel, California, on the Cultivation of the Fig in the United States.

Dr. E. S. Hull, Illinois, on Root-Pruning, and how to grow the fairest fruit.

Mark Miller, Esq., Iowa, on Fruit, Growing, and Varieties, in Iowa and other Western States.

George W. Campbell, Esq., Ohio, on Grapes, Culture, Varieties, etc.

C. M. Hovey, Esq., Massachusetts, on Pear Culture.

P. Barry, Esq., New York, on How to Grow and Keep Pear Trees in vigor and shape.

Robert Manning, Esq., Massachusetts. Is there a permanent decline in the Apple Tree and its Crop in New England?

P. T. Quinn, Esq., New Jersey, on the Exhaustion of Fruit-Trees, and the remedies therefor.

Josiah Hoopes, Esq., Pennsylvania, on the Influence of the Stock on the Graft, or of the Graft on the Stock.

A. S. Fuller, Esq., New Jersey, on Culture and Varieties of Small Fruits.

Wm. Parry, Esq., New Jersey, on the Cultivation and Varieties of the Apricot and Plum.

W. C. Barry, Esq., New York, on the Keeping and Ripening of the Apple, Pear and Grape.

F. R. Elliott, Ohio, on the Cherry.