Wyman.] 234 



produced by the mode of denudation, which has, in several instances, 

 excavated valleys two or three thousand feet deep, and from seven 

 to fifteen miles long, very narrow and with abrupt sides, exhibiting 

 every lava stream which flowed to form the island in the places where 

 they are thus cut through. Hanapepe valley is the most striking of 

 these long, deep and very narrow valleys, though the "VVaimea, Ma- 

 kaweli and Wainiha valleys, are each very large. 



On the mountains of the group; i. e., Haleakala, on East Maui, 

 Mauna Loa, Mouna Kea and Hualalai, on Hawaii, where volcanic 

 action has been more recent, we fail to find any such systems of val- 

 leys though their sides are in some places slightly scored. 



I think in some instances the position of the valleys is between 

 streams of lava, but it is very probable that this has not always been a 

 means of locating them. 



Prof. J. Wyman gave an account of some iiTegularities no- 

 ticeable in the cells of the hiye bee. He had found the 

 studies of Reaumur, on this subject, published one hundred 

 and twenty-five years ago, more correct than those of some 

 of the later observers, especially Lord Brougham, who have 

 attempted to show that the cells are mathematically exact in 

 their construction. Reaumur observed not only variations in 

 the diameter of the cells, and breadth of the sides, but also in 

 the terminal planes. 



Dr. Wyman found that all the kinds of cells varied, the worker 

 cells least, those of the drones more, and the honey cells greatly 

 The variations of these last are easily noticed by all. 



If ten worker cells, arranged in the same straight line, are meas- 

 ured through corresponding sides, and then two other series of the 

 same number crossing the first line, the different measurements will 

 sometimes be found to vary by the diameter of a cell, as the following 

 measurements show : 



Cell 1. 1st diameter 1.97 inch. 



2d " 2.06 " 



3d " 1.99 " 



Cell 2. 1st diameter 1.93 " 



2d " 1.97 " 



3d " 2.00 " 



Cell 3. 1st diameter 2.02 « 



2d •' 2.09 " 



3d " 2.03 « 



