THE NAUTILUS. 29 



NOTES. 



DR. NORMAN MACDOWELL GRIER has been appointed Pro- 

 fessor of Biology in Washington and Jefferson College, Wash- 

 ington, Pa. 



DR. PILSBRY and DR. BARTSCH will represent the Academy 

 of Natural Sciences and the National Museum respectively at 

 the Pan-Pacific Scientific Congress to be held in Honolulu in 

 August. 



Communications intended for the September NAUTILUS should 

 be sent to Mr. Johnson in Boston. 



SHELLS FROM JAMESTOWN, NORTH DAKOTA. On June 6th, 

 1912, I had an hour or two to wait for a train at Jamestown, 

 which I improved by taking a stroll along the banks of "Jim ' 

 River in search of mollusks. It is not a likely-looking field for 

 snails as there are only a very few scattering scrubby locust 

 trees along the river banks, but the final count shows ten species, 

 and as one of them is Gastrocopta holzingeri agna (Pils. and Van.) 

 it may be well to put it on record, since the only other records 

 for it I am aware of are in Kansas and southeastern Colorado. 

 I am indebted to Mr. Bryant Walker and Dr. V. Sterki who 

 carefully examined the specimens. 



Vallonia costata (Mull). 

 Vallonia perspectiva Sterki. 

 Gastrocopta armifera (Say). 

 Gastrocopta holzingeri Sterki. 

 Gastrocopta h. agna (Pils. & Van.). 

 Cochlicopa lubrica (Mull). 

 Vitrea hammonis (Strom). 

 Pyramidula cronkheitei anthonyi Pils. 

 Succinea avara Say. 

 Succinea retusa Lea. L. E. DANIELS. 



