From April 6,1935 (date of the last report) up to the present date (Feb. 26,1938) the Bureau has distributed 723 telegrams and published 174 circulars (Nos. 535-708).
The Bureau has again been supported by a great many colleagues and institutions.
As heretofore, the leading principle in our work has been as far as possible to procure provisional data for the continuous observation of new objects. The telegraphic service has been used when necessary to safeguard new discoveries, while in all cases possible the circulars have been depended on. Thus, as before, in dubious cases we have, to begin with, sent a telegram to a few correspondents only, asking for control. In cases of rediscovery of periodic comets and in other cases, when there was no risk of losing the object, we have distributed the announcement through the circulars.