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It seems impossible to organize a firm classification from data not at hand. There are apparently mergings or blendings of each type into the others. We will describe and list some of them. Maybe something will work out as we go along. 1697: A horrid black cloud, attended by frequent lightnings, was precursor of a violent hailstorm. Animals were killed, crops ruined, and people had their heads broken. The breadth of the cloud was about two miles. The hailstones were some round, some semispherical and others were embossed and crenulated like the foot of a drinking glass, the ice being very transparent and hard. 1812: The latest remarkable fall of aerolites in Europe, of which there is a distinct account, was in the vicinity of Laigle, Normandy, early in the afternoon of April 26. A fiery globe of a very brilliant splendor, which moved in the air with great rapidity, was followed in a few seconds by a violent explosion which lasted five or six minutes and was heard for thirty leagues in all directions. Three or four reports like those of a cannon were followed by discharge resembling musketry fire, after which a dreadful rumbling was heard like the beating of a HUGE drum. The air was calm and the sky serene with the exception of a few clouds such as are frequently observed. The noise proceeded from a small cloud of rectangular form, the largest side being in a direction from east to west. It appeared motionless all the time the phenomenon lasted, but the vapor of which it was composed was projected momentarily from the different sides by the effect of the different explosions. The cloud was about half a league to the northeast of Laigle, and was at so great an altitude that the inhabitants of two hamlets a league apart saw it directly overhead. A multitude of meteoric stones fell amid a hissing sound. Thunderbird, Dragon of Lao Fz 27 ALL the same thing, all Rumble when "Hit" Hard or When in Need of Repairs. The shape of that "cloud" is important. It seems to be the only sure clue that this could be anything more than an ordinary exploding meteor. Rectangular clouds do not just happen. They almost certainly have to be made. And the cloud appeared to be motionless. Meteors do not remain Motionless. The clouds which they usually provoke are not capable of sustaining the heavy meteoritic material inside, should the whole complex become immobile. So this cloud was certainly not of ordinary meteorological origin, and seems to partake of artificiality. Also, a stationary state is indicative of control. There is something of the incongruous in meteors which exit from clouds, especially clouds of such peculiar formation that they do not associate easily with the common variety of weather clouds. Maybe that seems to be a rather remarkable statement. But if a meteor is moving through the atmosphere at a rate of ten to twenty miles per second there is not much time for clouds to form ahead of it. A cloud train behind the meteor would require little in the way of explanation, but, under such circumstances, how do we form a cloud in time for the meteor to emerge from it: why does the cloud suddenly and sharply stop moving while the meteor passes onward; why, in short, does there seem to be a slight difference between the usual meteors and those which emerge from clouds? We quote the following from Observatory, 1877, a popular British astronomical monthly of competence and reliability: ... the meteor was seen by J. Plant, Esquire, F.O.S., at Salford, and is described by him as bursting from an intensely lit cloud, like a ball of silver quite as large as the moon. The explosion was remarkable, a whirling shower of pear-drop (sic) stars—ruby, blue, white and yellow—radiating from the center mass, the colors being quite brilliant. The meteor was seen about three seconds before the explosion. The meteor itself may be only casually interesting, although its colors may be unusual and may hold some interest for students of meteoritics. What is of interest to us is the cloud, which seems to 7