194 
The American Gcoloirist. 
March, 1900 
lowed the suspended material to drop along the line of the least 
motion and thus build up the straight bar while at the same time the 
two sets of waves separately were forming the cusp. 
'm»*" 
The photograph here reproduced (Fig. 2), was taken from the 
outer end of the straight bar looking along it towards the cusp. The 
position of the straight bar is shown by the breaking of the waves 
over it. These were ordinary waves produced by the wind. Another 
visit to the same place in August, 1899, disclosed the fact that the 
gradual lowering of the lake by a foot or so had destroyed the nice 
balance of conditions to such an extent that but little trace of the 
cusp and its straight bar could be found. 
Case School of Applied Science, Frank Nason Comstock. 
Clevelattd, Ohio. 
PERSONAL AND SCIENTIFIC NEWS. 
Dr. O. C. Farrington of the Field Columbian Museum, 
who has been appointed Honorary Mineralofjist to the Com- 
missioner General of the United States to the Paris Expo- 
