446 RECORDS 



2o''.464=h o '^oo6. 



Mr. Bauer, in his paper, stated that the star under con- 

 sideration has a large proper motion and measurements of its 

 parallax have been made by various methods and observers. 

 The present determination is based on 28 Rutherfurd photo- 

 graphic plates, and the method of position angle was used in 

 measuring them, as Professor Jacoby has already made a re- 

 duction using the method of distance. Eleven independent de- 

 terminations were made, giving a value of 



o ''.238 zb 0^^014. 



Professor Jacoby found by the method of distance o^^275 =b 

 o''.024, these results agree even better than might have been ex- 

 pected. In forming the catalogue of 56 stars about // Cassi- 

 opeise, the usual corrections for refraction, precession, nutation, 

 aberration, proper action, etc., were applied. Since the coor- 

 dinates were measured in distance and position angle, these 

 were then converted into difference of right ascension and de- 

 clination. After finding the positions for the epoch 1872.0 the 

 precession and secular variation were computed and tabulated. 



Wm. S. Day, 



Secretary. 



SECTION OF BIOLOGY. 

 February 12, 1900. 



Section met at 8 P. M., Dr. Bashford Dean presiding. 



The minutes of the last meeting of Section were read and ap- 

 proved. 



The following program was then offered : 



J. H. MacGregor On the Development of the Skull in 

 Ceratodus. 



F. B. Sumner, Kupfer's Vesicle in Relation to Gas- 



TRULATION AND CONCRESCENCE, 



G. S. Huntington, Some Muscle Variations of the Pec- 

 toral Girdle. 



