Ix Trans. Acad. Sci. of St. Louis. 



November 16, 189(3. 



President Gray in the chair, fifteen persons present. 



Dr. Charles R. Keyes read a paper entitled, How shall we 

 subdivide the Carboniferous? 



Professor J. H. Kiuealy exhibited a chart for determining 

 the number of square feet of low pressure steam-heating sur- 

 face required to keep a room at 70° F., and gave a description 

 of the method of making the chart. 



The Council having recommended that, in view of Mr. 

 Edwin Harrison's numerous donations to the Academy during 

 the period of his active membership, extending over nearly 

 forty years, he be elected a patron, on motion Mr. Harrison 

 was unanimously elected a patron of the Academy. 



The following persons, resident in St. Louis, were elected 

 active members : — Ellis Warren Lazell, Lewis Olivar Atherton. 



One person was proposed for active membership. 



December 7, 1896. 



President Gray in the chair, twenty-four persons present. 



Professor H. S. Pritchett presented a paper giving the re- 

 sults of measures of double stars, mostly close binaries, made 

 with the twelve-and-one-half-inch equatorial of the Glasgow 

 Observatory. These observations, compared with similar ones 

 made by him fifteen years earlier, showed some remarkable 

 changes, particularly in the case of 70 Ophiuchi, in which 

 the companion had described an arc of 102." Others, as 

 2 2120, showed that the motion of the companion star was in 

 dependent of the brighter one. The speaker gave a general 

 statement of the method of measuring double stars and the 

 method of determining the apparent and true orbits. 



Mr. William H. Roever presented an abstract of a paper on 

 the geometrical properties of lines of force proceeding from 

 electrical systems. 



Mr. A. W. Douglas, Dr. G. Baumgarten, and Professor 

 Otto Heller, were elected a committee for the nomination of 

 oflicers for the year 1897. 



Mr. Colton Russell, of St. Louis, was elected an active 

 member. 



