nvestigators. 
One of the greatest needs of American science _ 
at the present time is a convenient medium in which _ 
_ brief preliminary notices of the results of investig tion 
can be published. A considerable length of time of 
necessity elapses between the conclusion of any series 
of observations and their appearance in print, and it — 
is of great advantage to the observer, and still more to 
his fellow-workers, to ae the results made dowi as 
