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POPULAR SCIENCE MONTHLY. 



Polytechnic Institute, Terre Haute, Ind. : Fif- 

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United States Geological Survey. Geologic 

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Will'ams, George A. Topics and References 

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0f 



Large Trees from the Coal Period. The 



approach from the south to La Grange, Ala., 

 is marked by the fine view into the valley 

 of the Tennessee River, three or four hun- 

 dred feet below, which it presents, and by 

 the masses of sandstone lying around the 

 village, where it has been precipitated from 

 the cliffs above by the wearing away of the 

 limestone under them. But the most inter- 

 esting and remarkable feature of the locality, 

 says Mr. Henry McCalley, in his geological 

 report of the valley region, and the one for 

 which La Grange will always be distinguished, 

 is the profusion of the remains of fossil 

 plants. Nowhere can one gain better ideas 

 of the magnificence of the flora of the coal 

 period than at this place. Trunks of Lepi- 

 dodendron, two or three feet in diameter, lie 

 buried and protruding from the debris of the 

 sandstone. These trunks have in general 

 preserved their form and are not at all com- 

 pressed, whereby they show that they stood 

 erect in the beds that inclosed them. Al- 

 though stripped of their bark, the scars are 

 plainly impressed on their surface. Two 



very fine specimens of these trunks are in 

 the cabinet of the Geological Survey at the 

 State University. One of them represents 

 the lower part of the trunk, and has two 

 large roots attached. The other has been 

 used as a horse block, is about three feet in 

 diameter and four feet high, and is remark- 

 able for the impressions of calamites and 

 other plants of which the sandstone com- 

 posing it is full. The supposition is drawn 

 from them that, in the process of petri- 

 faction, the interior of the trunk was re- 

 moved by decay or otherwise, leaving a hol- 

 low cylinder of the outer layers of the trunk, 

 and that this hollow cylinder was filled up 

 with sand and fragments of calamites and 

 other coal plants, which subsequently hard- 

 ened. 



The Moki Indians and their Birds 



The Moki Indians are described, in Dr. E. A. 

 Mearns's paper on the names of their birds, 

 as having a superstititious regard for most 

 living things, particularly as holding serpents 

 in reverence and a number of birds as sa- 



