p. 21

-21-

1827.

logs, bones of quadrupeds, &c. and occasionally primitive masses all of which seem to indicate that the river had once run near where the canal now does.

Should you think any part of this communication, worthy of a place in the American Journal of Science, I hope you will not let anything incorrect pass.

I have drawn, beside the drawings I send you, a geological profile extending from Louisville to the Knobs, a profile of the canal and a plan of the locks; but I found that the postage would be more than I expected, therefore I did not send them.*** I have at last succeeded in finding one new subscriber to the Journal of Science, Mr. Mann Butler, the historian, of Louisville.*** He teaches a large school and is in high standing in Louisville.

Yours respectfully,

Increase A. Lapham.

Prof. B. Stillman,

New Haven.

[Asst. Eng. L & P Canal, Louisville, KY.]

Nov. 12 A little rain this morning, followed by dark gloomy weather, which Mr. Henry? said was a forerunner of an earthquake. (The earth did not quake however)***

Nov. 21*** Went up the canal to see some experiments with the machine invented by Mr. Oliver Phelps of the Welland canal, for drawing carts up a deep cutting.

Nov. 22. Staid in my room reading Titler's Elements of General History.*** Victor Audbon says, that "flies form a vacuum under their feet when they alight, for the purpose of keeping themselves to the surface on which they slight.". in the same manner as the limpets (Patella L.) attach themselves to the rock. He also says that some late writer has suggested the idea of a man's walking up a perpendicular wall by having proper apparatus for forming

*See notebook No. 1