Geological Relief Models 63 



GEOLOGY, GEOGRAPHY AND PAST LIFE ON THE 



EARTH* 



Edmund Otis Hovey, Curator 



Under the immediate direction of Associate Curator Reeds, 



excellent progress has been made in the new arrangement of 



the exhibition hall. As far as available material 



Exhibition. goes, the biological alcoves of plants, brachio- 



Mali 



pods, pelecypods, gastropods, cephalopods, tnlo- 

 bites and echinoderms were added to those previously in place, 

 while on the stratigraphical side of the hall much material was 

 installed in all the period exhibits. Dr. Reeds has had the 

 hypothetical land masses and other data placed on the eight 

 paleogeographical models and they now await painting to com- 

 plete them. These models will form an attractive and highly 

 instructive feature of the hall, giving visitors a clear visual 

 concept of the meaning of earth history. When the main 

 work on the hall stopped in mid-year, through exhaustion of 

 funds for the special staff engaged on it, Mr. Foyles was as- 

 signed to systematizing the arrangement of the mounts in the 

 hall. 



In February the completed model of the Bright Angel sec- 

 tion of the Grand Canyon of the Colorado was installed with 

 its painted pictorial background, and the exhibit has received 

 much complimentary notice from scientific and other visitors, 

 indicating the interest that will be aroused and the instruction 

 to be derived from the whole series of relief models planned 

 for the hall. 



There has been placed on exhibition, in a case on the ground 

 floor in the seismograph alcove, a selection from a remarkable 

 lot of lead ore specimens from the Laclede Mine, Tar River, 

 Oklahoma. These are part of a large series of such material 

 which was secured at the mine, for the purpose of reproducing 



* Under the Department of Geology and Invertebrate Paleontology (see also 

 pages 202 and 203). 



