568, _Meadville, Pa._ We number now only four, the others having left college; but what we lack in number is made up in zeal. We study nature with a great deal more care than when we first formed a Chapter, and have spent some of our most enjoyable hours in rambling though the woods. We send greeting to the Chapters, and say, "Long live the A. A., as one of the best schools in which any one can learn."--F. L. Armstrong, Sec. 574, _Indianapolis, Ind._ The future looks bright. We are all interested, and, although very lately reorganized, we hope to grow rapidly.--Tom Moore, Sec. CONCERNING "PUFF-BALLS." All our botanical friends will be interested in the following paper on the curious fungi commonly called "puff-balls"; but I must emphasize the words of caution given by Professor Trelease and warn you not to eat any puff-balls whatever, until you have been taught to distinguish the good from the poisonous, by a competent botanist, with the actual specimens in his hand. So long as you have the slightest doubt, remember the old test--"Eat one,--then if you live, it was an edible mushroom; if you die, it was a poisonous fungus!" Here is what Professor Trelease says: I have been asked several times by the boys of the Agassiz Association to go with them on little collecting excursions, and I have always found them much interested in toadstools, and other fungi. From what I have seen on these and similar excursions, I have been led to think that if given a little idea about some of these plants a good many people would be glad to observe them more closely. One group of fungi in particular--the puff-balls--has a great deal of interest for me. It is a very difficult group to study, and if the sharp-eyed boys of the Agassiz Chapters all over the country will be on the lookout for puff-balls this summer and fall, they can be of assistance in some work that there is much need of doing with these plants. Every boy who lives in the country must have seen the giant puff-ball (_Lycoperdon bovista_) that grows in pastures, looking like a great white egg, sometimes nearly two feet high, set up on its small end. It is not easy to see where these curious growths come from, for they sometimes appear as large as one's fist, or larger, in the morning, in places where there was nothing of the sort the night before. Then they often grow for several days, and finally turn brown and break up into a dusty mass that at last blows away like smoke, leaving nothing but a dried, torn remnant behind.