490, _New York_ (_N_). The year has been the most successful of our existence. We stand to-day strong in numbers, interest, and enthusiasm. We have held meetings steadily twice a month, and these have been enthusiastic and well attended. Our good friend, Professor J. D. Hyatt, has lectured for us, illustrating each lecture by blackboard diagrams and also by his powerful microscope. We have started a library, and a number of interesting and valuable books have been presented to us. We have issued a little paper called the “Naturalist’s Journal.” Our cabinet is assuming gigantic proportions, and embraces specimens in all lines of natural history, properly arranged and classified. We have a tabulated list of subjects and speakers for our meetings arranged for the next three months. These are nicely printed, together with names of officers, time of meeting, rules, and constitution, so that each member can have a copy for his own reference, and also to distribute to his friends. We have also made arrangements for excursions and field-meetings. We are encouraged and inspired by the past, and enter upon the future with bright anticipations for still greater success. May that success crown the efforts of all our Chapters!—Cephas B. Fox, Secretary. REPORTS FROM THE SIXTH CENTURY. 527, _San Francisco_ (_G_). One of our young men has made an excellent induction-coil and other apparatus which we find useful in experimenting. Our work, as members of the A. A., has been very satisfactory and instructive.—Henry Rhine, Secretary. 539, _Philadelphia_ (_P_). We started in October, ’83, with ten members, and we now have thirty-two. We have held 100 regular and two special meetings. Six lectures have been delivered to the Chapter by as many lecturers. Our present plan of working is this: The Chapter is divided into three classes, zoölogy, botany, and mineralogy and geology. A member may join all the classes if he chooses, but must join at least one. Each class elects its own chairman. At four successive meetings, zoölogy is studied. The next four meetings are botanical. We conduct a journal, not printed, but written in a book, and read by the editor. Each member, in turn, is appointed to contribute an article to this journal. Our finances are in good condition, and in our next report I hope you will find an account of a permanent meeting-place (with an engraved charter, and picture of Professor Agassiz on the wall), containing a large library, a new cabinet, and a splendid microscope.—Louis L. Calvert, Sec.