322 PROCEEDINGS OP THE AMERICAN ACADEMY 



and others by photometric apparatus devised by Mr. Parkhurst, and 

 partially described in the article entitled " Recent Observations of 

 Variable Stars," which was mentioned above. A copy of the observa- 

 tions has been furnished to the Harvard College Observatory. The 

 co-operation of Mr. Eadie with Mr. Parkhurst has already been men- 

 tioned. The former observer undertakes the observation of certain 

 stars while they are sufficiently bright to be well seen in his telescope, 

 and when they become too faint for further observations he notifies 

 Mr. Parkhurst to begin observing them. When they are again suffi- 

 ciently bright to be observed by Mr. Eadie, he is informed of the fact 

 by Mr. Parkhurst. This system permits each observer to employ his 

 time to the best advantage. It is hoped that some astronomer having 

 a large telescope at command will undertake observations of the stars 

 studied by Messrs. Parkhurst and Eadie at times when they are too 

 faint to be followed by either observer. 



Sk. Professor Safarik, of Prague, Austria, has furnished a state- 

 ment of observations made by him in 1885, and also of those made in 

 1883 and 1884, which were incompletely noticed in the circular fiub- 

 lished in 1885. The observations were made by Argelander's method. 

 The instrument used previous to March, 1885, was a Newtonian re- 

 flector 6^ inches in aperture, with a mirror of silvered glass. The 

 ordinary magnifying power was 32. The finder had an aperture of 3 

 inches, and a magnifying power of 12. Subsequent observations were 

 made with a refractor by Schroder, with an aperture of 4.5 inches, a 

 magnifying power of 23, and a field of 1° 30'. Between 1880, Jan- 

 uary 1, and 1884, December 31, Professor Safarik has made a little 

 more than 5700 observations of about 100 stars. During the year 

 1885 he made 1647 observations of 89 stars. On all suitable occa- 

 sions he estimates the colors of the stars observed upon Schmidt's scale. 

 The number of observations made in the separate mouths of each year 

 are given in the statements just described. 



Sr. These observations were made, according to Argelander's 

 method, by Mr. E. F. Sawyer, at Camhridgeport, Massachusetts, by 

 means of an opera-glass for the brighter stars, and of a field-glass for 

 the others. 



Zr. The observations of Assistant Zaiser have already been men- 

 tioned under the heading Hn. 



Table I. indicates the progress of observation for stars included in 

 Table I. of previous reports. Other stars, whether known or suspected 

 to be variable, are included in Table II. All the columns of Table I. 

 except the last are repeated from the statement of the previous year. 



