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corolla — while iu the other kind the pollen would not be 

 found to exert a fertilizing effect upon its own stigma. 

 But the two kinds of flowers were exquisitely arranged to 

 produce cross-fertilization. An insect, exploring a corolla 

 where the anthers were at the bottom, would cover its 

 proboscis with pollen, which would be carried to the 

 depressed stigma of the other kind of flower, and while 

 visiting that second flower, the insect's head would remove 

 some of the pollen, which again it would leave on the 

 exserted stigma of a third flower of the kind flrst plun- 

 dered. The structure of these flowers is to be explained 

 in Prof. Gray's book, just passing through the press, 

 entitled "How Plants Behave." 



Mr. J. H. Emerton mentioned that in November last 

 he dug a root of Batrychium dissedum from an open 

 pasture, and in January set it down with other ferns in a 

 glass case. In about two months it produced a new frond 

 with the usual triangular outline, Ijut nearlv twice as large 

 as the old ones, and with the divisions of the pinna3 almost 

 entire. The next frond, which grew in another month, 

 was of the ordinary kind. It afterward produced in 

 succession three fronds five or six inches long, with pinnte 

 in pairs over an inch apart toward the base, and with their 

 divisions almost entire, looking very much like small 

 sterile fronds of Osmurida Claytoniana. 



Mr. F. W. PuTXAM gave an account of the explora- 

 tions of several members of the Institute at Jeffries' Neck , 

 in Ipswich, on Friday last. 



The researches were undertaken for the purpose of 

 ascertaining if a large number of depressions, in two 

 groups, about a mile apart, were graves of Indians, as 

 had been supposed. After carefully digging into several 



