4 THE NAUTILUS. 
I was very much surprised to find in one of my hauls with the 
dredge, a number of very perfect specimens of Turbonilla interrupta 
Totten, associated with Odostomia interrupta Say, and also Nucula 
proxima Say. 
One of the most abundant Mollusks of the South seems to be 
Melongena corona Gmel. This shell is to be found upon the salt 
marshes (Savannas) in great numbers, and of all sizes from a half 
inch in length to over four inches, and through all degrees of per- 
fection. I collected one day in a single hour 360 of these shells 
comprising one of the finest series of this mollusk that could be im- 
agined. I noticed among them a number of specimens having a 
double row of spines, all the way around the whorls. This variety 
has been named bispinosa by Philippi but the characters are not 
constant and the name therefore does not stand. 
SUMMER STUDIES IN CONCHOLOGY. 
BY PROF. JOSIAH KEEP. 
For several years past a class in Conchology has been connected 
with the Chautauqua Assembly at Pacific Grove, Monterey, Cal. 
This Assembly meets annually about July 1, and continues its ses- 
sions for the space of two weeks. During this time there are nu- 
merous lectures, concerts, and other intellectual exercises, many of 
which are of a high grade of excellence. Such a programme, given at 
this delightful watering place, naturally attracts many visitors be- 
side those who are engaged in the regular Chautauqua course of 
studies. The past season has been no exception, but the interest has 
been deeper and the attendance larger than on any previous occa- 
sion. 
The science classes were mostly held at nine o’clock in the morn- 
ing, and were followed by a public lecture. Excursions to the beach 
were made at various times, particularly in the early morning, in 
order to take advantage of the very low tides which occur then, 
about the time of the new and the full moon. 
The class in Conchology was no respecter of persons in regard to 
age or occupation. Around the tables on which our shells were 
spread were seated matrons with gray hair, boys and girls, young 
men and women, ministers of the gospel, teachers from our schools, 
here a young man from the farm, and beside him a mother leaving 
