The following programme has been prepared for our next General Convention to be held at Davenport, Iowa,in August:
Wednesday, August 25:—9 A.M. Reception of the National delegates, and visit to the Academy of Sciences.—2 P.M. Opening of Convention, 1. Prayer. 2. Address of welcome by Senator James Wilson of Iowa. 3. Response by the President of the A. A. 4. Reading of papers.—7 P.M. Reception and banquet, with toasts and responses.
Thursday, August 26:—9 A.M. 1. Question Box. 2. Visit to the Government Island.—2 P.M. 1. Working Session. 2. Address by the President of the A. A.—7 P.M. Lecture, by Prof. T. H. McBride, of the Iowa State University.
Friday, August 27:—Steam-boat excursion down the Mississippi.
Prof. Crosby's Class in Mineralogy.
Boston, Mass.
The class now includes 122 bona fide correspondents. The great majority have very greatly and agreeably surprised me by the excellence of their work. I have been especially delighted by the success of the chemical experiments. I was in doubt at first as to the propriety of introducing these; but I should never hesitate again. The success of the class is so much beyond my expectations that I am fully reconciled to the time and labor it has cost me.
W. O. Crosby.