Record. xxxi 



when several of the artifacts to be selected were scattered among a 

 number of plain artifacts of the colors used in making the color 

 pattern; second, when the artifact to be selected was scattered among 

 several other artifacts, some of which were plain and some of which 

 were marked with patterns unlike that of the artifact to be chosen; 

 third, when the only difference between the artifacts was that one 

 was marked with transverse and the other with longitudinal stripes; 

 fourth, when the artifacts to be selected contained the honey and the 

 others did not; fifth, when honey was to be found not only in the 

 artifact to be selected, but in some of the other artifacts also; sixth, 

 when none of the artifacts contained honey. 



Dr. H. M. Whelpley spoke on ''Miniature Indian Bas- 

 kets." 



Dr. Whelpley exhibited two specimens made by the Pomo Indians, 

 which were viewed by means of simple microscopes. The foundation 

 of the baskets is from the white leaf willow (Salix argyrophylla) and 

 is sewed with California sedge (Carex barbarae). The baskets are 

 made in pattern black and white, the black being from the root of 

 the California sedge. 



The larger basket is .ISx.lO inches, with the opening .06 inches 

 across and weighs i/4 grain. The smaller basket is .10x.04 inches, 

 with an opening .04 of an inch across, and weighs 1/20 grain. Both 

 baskets are woven in the same manner as large baskets and care- 

 fully patterned. 



The Pomo Indians, located in northern central California, are 

 noted for their basketry which is unrivaled in North America, for 

 workmanship, beauty and variety of design. The women are the 

 weavers but the smaller basket was made by a man, who is one of 

 the few men weavers among the Pomo Indians. 



Dr. Geo. 0. James was elected to membersliip. 



The death of Dr. Enno Sander, an honorary member 

 of the Academy, and for forty-eight years its Treasurer, 

 was reported. 



Makch 4, 1912. 



President Engler in the chair; attendance 48. 



Dr. Chas. A. Todd addressed the Academy on *'A Prob- 

 lematical Geological Phenomenon in Colorado." 



The remarkable arrangement of rocks, which Dr. Todd discussed, 

 is found in the northeastern mountainous district of Colorado, in the 

 region known as Estes Park, near Fern Lake. 



After describing the topography of the region. Dr. Todd described 

 the particular locality. It is a conical pit, the sides of which slope 

 at an angle of about 45°. Its length is roughly 600 feet, its width 

 200, and its depth about 50. Adjoining and blended with this oblong 

 pit at its eastern end is a circular pit of the same general character. 



