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Stewart, Balfour. 51. On the Sun as a variable 

 star. [1867.] Roy. Instit. Proc. V., 1869, pp. 

 138-144. 



i 52. A preliminary investigation into the 



laws regulating the peaks and hollows exhibited 

 in the Kew magnetic curves for the first two 

 years of their production. Roy. Soc. Proc. 

 XVII., 1869, pp. 462-468. 



53. On Auroral appearances and their con- 

 nexion with the phenomena of Terrestrial Mag- 

 netism. [1869.] Astron. Soc. Month. Not. 

 XXX., 1870, pp. 34-35 ; Phil. Mag. XXXIX., 

 1870, pp. 159-160. 



54. Results of the monthly observations of 



Dip and Horizontal Force made at the Kew 

 Observatory, from April 1863 to March 1869 in- 

 clusive. Roy. Soc. Proc. XVIII., 1870, pp. 231- 

 242. 



55. On the temperature-equilibrium of an 



enclosure in which there is a body in visible 

 motion. Brit. Assoc. Rep. XLL, 1871 (Sect.), 

 p. 45 ; Manchester, Lit. Phil. Soc. Proc. X., 

 1871, pp. 32-34. 



56. Recents progres de la physiqiie cos- 

 mique. Revue Cours Scient. I., 1871, pp. 87- 

 94. 



57. An account of some experiments on 

 the melting point of paraffin. [1872.] Man- 

 chester, Lit. Phil. Soc. Proc. XII., 1873, pp. 15- 

 18. 



58. On ethereal friction. Brit. Assoc. 



Rep. XLIIL, 1873 (Sect.), pp. 32-34. 



Stewart, Balfour, and Brito-Capello, J. Results 

 of a comparison of certain traces produced simul- 

 taneously by the self-recording magnetographs 

 at Kew and at Lisbon ; especially of those which 

 record the magnetic disturbance of 15 July 1863. 

 Roy. Soc. Proc. XIII, 1864, pp. 111-120. 



2. Description of the magnetic storm 



of the beginning of August, 1865, as recorded by 

 the self-recording magnetographs at the Kew and 

 Lisbon Observatories. Brit. Assoc. Rep. XXXV., 

 1865 (Sect.), pp. 20-21. 



Stewart, Balfour, De La Hue, W., and 

 Loewy, B. Researches on solar physics. 

 Series 1. On the nature of solar spots. Roy. 

 Soc. Proc. XIV., 1865, pp. 37-39; Phil. Mag. 

 XXIX., 1865, pp. 237-239. 



2. Researches on solar physics. 



Series 2. On the behaviour of Sun-spots with 

 regard to increase and diminution. Roy. Soc. 

 Proc. XIV., 1865, pp. 59-63; Phil. Mag. 

 XXIX., 1865, pp. 390-394. 



3. Note regarding the decrease of 



actinic effect near the circumference of the Sun, 

 as shown by the Kew pictures. Astron. Soc. 

 Month. Not. XXVI., 1866, pp. 74-76; Phil. 

 Mag. XXXI., 1866, pp. 243-244. 



Stewart, Balfour, De La Hue, W., and 



Loewy, B. 4. On the distribution of solar 

 spotted area in heliographic latitude. [1866.] 

 Astron. Soc. Month. Not. XXVII., 1867, pp. 

 12-14; Phil. Mag. XXXIII., 1867, pp. 79-80. 



5. Account of some recent observa- 

 tions on Sun-spots made at Kew Observatory. 

 Roy. Soc. Proc. XVL, 1868, p. 447. 



6. Researches on solar physics. 



No. 1. Heliographical positions and areas of 

 Sun-spots observed with the Kew Photohelio- 

 graph during the years 1862 and 1863. ["1868.] 

 Phil. Trans. CLIX., 1869, pp. 1-110. 



7. Researches on Solar Physics. 



No. 2. The positions and areas of the spots 

 observed at Kew during the years 1864, 1865, 

 1866 ; also the spotted area of the Sun's visible 

 disk from the commencement of 1832 up to 

 May 1868. Phil. Trans. CLX., 1870, pp. 389- 

 496 ; Roy. Soc. Proc. XVIII., 1870, pp. 263- 

 264 ; Phil. Mag. XL., 1870, pp. 53-54. 



- 8. On some recent researches in 



solar physics, and a law regulating the time of 

 duration of the Sun-spot period. [1871.] Roy. 

 Soc. Proc. XX., 1872, pp. 82-87, 290; Phil. 

 Mag. XLIIL, 1872, pp. 385-390. 



9. Further investigations on plane- 

 tary influence upon solar activity. Roy. SoCc 

 Proc. XX., 1872, pp. 210-218. 



1O. On a tendency observed in Sun- 



spots to change alternately from the one solar 

 hemisphere to the other. Roy. Soc. Proc. XXL, 

 1873, pp. 399-402. 



Stewart, Balfour, and Loewy, B. An account 

 of the Base Observations made at the Kew 

 Observatory with the pendulums to be used in 

 the Indian Trigonometrical Survey. Roy. Soc. 

 Proc. XIV., 1865, pp. 425-439. 



2. An account of experiments made 



at the Kew Observatory for determining the true 

 vacuum- and temperature-corrections to pen- 

 dulum observations. Roy. Soc. Proc. XVII., 

 1869, pp. 488-499. 



Stewart, Balfour, and Sidgreaves, W. Results 

 of a preliminary comparison of certain curves of 

 the Kew and Stonyhurst declination magneto- 

 graphs. Roy. Soc. Proc. XVII., 1869, pp. 236- 

 238. 



Stewart, Balfour, and Tait, P. G. Preliminary 

 note on the radiation from a revolving disk. Roy. 

 Soc. Proc. XIV., 1865, p. 90; Phil. Mag. 

 XXIX., 1865, p. 476. 



2. On the heating of a disk by rapid 



rotation in vacuo. Roy. Soc. Proc. XIV., 1 865, 

 pp. 339-343; XV., 1 867, pp. 290-299 ; XXL, 

 1873, pp. 309-318; Phil. Mag. XXX., 1865, 

 pp. 314-318; XXXIIL, 1867, pp. 224-233; 

 XXXVIL, 1869, pp. 97-98; Annal. Phys. 

 Chem. CXXXVL, 1869, pp. 165-166. 



