Concerning the origin of bloody rain, Swammerdam entertained the same idea as Peiresc; but he does not appear to have verified it from his own observation. He makes the following remarks: “Is it not possible that such red drops might issue from insects, at the time they come fresh from the nymphs, which distil a bloody fluid? This seems to happen especially when such insects are more than ordinarily multiplied in any particular year, as we often experience in the butterflies, flies, gnats, and others.”[765] Dust is commonly attributed as the cause of this phenomenon, but will satisfactorily explain only a few instances. A writer for Chambers’ Journal, in an article on showers of red dust, bloody rain, etc., says: “In October, 1846, a fearful and furious hurricane visited Lyon, and the district between that city and Grenoble, during which occurred a fall of blood-rain. A number of drops were caught and preserved, and when the moisture was evaporated, there was seen the same kind of dust (as fell in showers in Genoa in 1846) of a yellowish brown or red color. When placed under the microscope, it exhibited a great proportion of fresh water and marine formations. Phytolytharia were numerous, as also ‘neatly-lobed vegetable scales;’ which, as Ehrenberg observes, is sufficient to disprove the assertion that the substance is found in the atmosphere itself, and is not of European origin. For the first time, a living organism was met with, the ‘_Eunota amphyoxis_, with its ovaries green, and therefore capable of life.’ Here was a solution of the mystery: the dust, mingling with the drops of water falling from the clouds, produced the red rain. Its appearance is that of reddened water, and it cannot be called blood-like without exaggeration.”[766] To conclude the history of bloody rain, the following is most appropriate: In 1841, some negroes, in Wilson County, Tennessee, reported that it had rained blood in the tobacco field where they had been at work; that near noon there was a rattling noise like rain or hail, and drops of blood, as they supposed, fell from a red cloud that was flying over. Prof. Troost, of Nashville, was called upon to explain the phenomenon; and, after citing many instances of red rain, red snow, and so called showers of blood, he concluded his learned article with this opinion: “A wind might have taken up part of an animal, which was in a state of decomposition, and have brought it in contact with an electric cloud, in which it was kept in a state of partial fluidity or viscosity. In this case, the cloud which was seen by the negroes, as the state in which the materials were, is accounted for.”