Dr. Nagy I. Zoltán szerk.: Fragmenta Mineralogica Et Palaentologica 6. 1975. (Budapest, 1975)

on their eastern sides, which is an evidence of the fact, that, when they reached the earth in an incandescent state, they slided on the surface of the loomy ground for some decimetres (SZABÓ 1868). On the basis on these features, we are reaching the following conclusions. The part which separated itself of the original meteoric body of about 500 kgs, was scattered into numerous smaller fragments, and a numberless lot of micrometeorites from the size of a pie to the size of a dust partiole has been formed. From the fragments exploded in this process even the largest ones had only a weight of 0, 5 to 1, 5-2,0kgs. They were flying along ballistic curves into every direction (Fig. 5). At the moment of the explosion and loss of mass which occured on the western side of the meteoric body a force was produced which caused a deviation from its W-E path into a path N 49°-229°, that is, in a northeasterly one. This force can be characterized by a North-South component which is theoretically equal to 0, 87 per cents of the W-E component . From notes taken by SZABÓ, we are knowing that the meteorites which flaw after the first explosion in a north-easterly direction and were detached subsequently, reached (all the fragments of them) in sliding in a W-E direction, or penetrating in the ground in the same direction, their final positions. Before discussing the question, why all the soil channels are possessing a W-E orientation, it should be mentioned that DUMA has made the following observation: within the enveloping ellipse, the meteorites which were fallen in the neighbourhood of the eastern boundary are in every case bigger than those which were fallen behind of them. This is quite obvious, as meteorites possessing a greater weight are flying (after their separation) with a higher initial energy. DUMA was able only to collect the bigger ones and to dosign their site for geodetical surveying. The smallest ones were micrometeorites, of the size of a coarse quartz-sand particle. On the map of SZABO it can be noted that in the western third part of the ellipse area, no fragment of an essential size has been recovered. Accordingly, the positive area of the meteoric shower has a sausage-like shape. The area on Fig. 5. was covered by more than a thousand meteorites of various sizes. It follows from all that has been said above, that the meteorite of the weight of 294 kgs, which was fallen at the easternmost end of the area, covered the largest distance and it was the last to fall. The extra length of this path, as compared to the explosion centre A, was: n = 5,9 cos 41° = 4,45 km. On the questions how and why some fragments are separated from a larger meteoric body, and why meteorites are generally explosing, we are answering as follows. Meteor showers are travelling since many million years across cosmic space. They are exhibiting temperatures corresponding to cosmic space. For a meteoric body of the mess and size corresponding to that of Krtahina before its explosion (of a masse of 500 of 550 kgs) a temperature between -50 and -180 degrees centigrade) may be surmised (that of the Moon being -180 degrees centigrade). When, however, this cold meteor is pénétra-