The undersigned give notice that the eleventh session of this Society will commence in the city of St. Louis, Mo., on Wednesday, Sept. 11, 1867, at eleven o'clock a.m., at Mercantile Library Hall, and will continue several days. All Horticultural, Pomo-logical, Agricultural, and other kindred institutions in the United States and British Provinces are invited to send delegations as large as they may deem expedient; and all other persons interested in the cultivation of fruits are invited to be present and take seats in the Convention.

Among the prominent subjects which will come before the Society at this ses-sion will be that of the revision of the Society's Catalogue of Fruits. The special Committee appointed for this purpose are now, with the various State and Local Committees, actively engaged in collecting such information as will aid in determining what varieties are best adapted to the different sections and districts of our country ; and this information, in the form of reports, will be submitted to the action of the Convention. In compliance with a resolution passed at the last session of the Society, the several State Pomological and Horticultural Associations are requested to compile lists for their own States or Districts, and forward them, at as early a day as possible, to P. Barry, of Rochester, N. T., Chairman of the Committee on the Revision of the Catalogue.

Members and delegates are requested to contribute specimens of the fruits of their respective districts, and to communicate in regard to them whatever may aid in promoting the objects of the Society and the science of American Pomology; and as the fruits of the South and Southwest will then have attained their size, it is especially desirable that a grand display from these sections be made.

Bach contributor is requested to come prepared with a complete list of his collection, and to present the same with his fruits, that a report of all the varieties entered may be submitted to the meeting as soon as practicable.

All persons desirous of becoming members can remit the admission fee to Thomas P. James, Esq., Treasurer, Philadelphia, who will furnish them with Transactions of the Society. Life membership, ten dol-lars; biennial, two dollars.

Packages of fruits, with the name of the contributor, may be addressed as follows:

"American Pomological Society," care of C. M. Saxton, corner Fifth and Walnut streets, St. Louis, Mo.

Marshall P. Wilder, President James Vick, Secretory.