DISTRIBUTION 143 
region of New Jersey; lesser collections have been made in 
Vermont, eastern Massachusetts and Connecticut. Sufficient 
time has been spent in these different regions to warrant a 
rough comparison. The region about New York appears 
to be by considerable the richest in number of species. The 
region about Boston possesses a good number of species, but brief 
visits at different seasons have made it appear doubtful if even a 
thorough exploration would disclose as great variety as is to be 
found around New York. Litchfield county, Connecticut, is a 
disappointing region. The very numerous streams would lead 
one to expect to find a large number of forms. However, during 
a trip across the county in September very few Chlorophyceae 
except Spirogyra and Oedogonium were found; in the spring 
months some very interesting forms were collected, but no great 
number could be obtained. 
In Vermont, from summer explorations in the vicinity of Bur- 
lington and Grand Isle, and investigations during more than a 
year at St. Johnsbury, we have been forced to the conclusion 
that there is no great number of forms of common occurence. 
Possibly more might be seen in the western part of the state 
in the spring, but the pools and streams there are much less 
affected by the summer heat than those about New York, and 
consequently one would not expect a great difference between 
the spring and summer algal floras. Indeed, Draparnaldia, 
which disappears entirely from New York streams during the 
summer has been found at St. Johnsbury in August, so that 
a larger number of species of Myxonema also might be expected. 
In the vicinity of New York so many of the streams are nearly 
or quite exhausted during the summer months that one would 
not expect at that season to find many of these pure-water loving 
plants. Nevertheless even during the hottest days in the fountain 
basins and watering-troughs there is a sufficient abundance of 
material to keep one busy in collecting and comparing different 
forms, particularly of Myxonerma, and it is hardly to be supposed 
that the whole number of these summer forms is here treated. 
It is to be regretted that there has been necessity for assuming 
so critical and perhaps apparently pugnacious an attitude toward 
the work of others, and in particular Americans, but possibly 
