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Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: Volume 2., chapter 7.48 (search)
nder it also acoustically opaque; which, up to the time of Mr. Tyndall's experiments in the English Channel, off Dover, had scarcely been questioned. His tests made in 1873-74 proved conclusively, as is now well known, that on clear days the air may be composed of differently heated masses, saturated in different degrees with aqueous vapors, which produce exactly the deadening effects described above. I submit as a case in point a similar effect, and its explanation as furnished by Mr. R. G. H. Kean to Professor Tyndall, and considered by the latter of sufficient value to find a place in his published works: On the afternoon of June 27th, 1862, I rode, in company with General G. W. Randolph, then Secretary of War of the Confederate States, to Price's house, about nine miles from Richmond. The evening before General Lee had begun his attack on McClellan's army, by crossing the Chickahominy about four miles above Price's, and driving in McClellan's right wing. The battle o