INDEX. 
ROBISON LL.D. (JOHN), observations on the places 
- of the Georgium planet, made at Edinburgh with 
an equatorial instrument. P. C, ii. 37. 
on the motion of light, as affected by refract- 
ing and reflecting substances, which are also in 
motion. P. C. ii. 83. 
biographical account of. vii. 495. 
ROBISON (JOHN), notice regarding a time-keeper 
in the hall of the Royal Society of Edinburgh. 
xi. 345. 
ROCKS, on the igneous, in the neighbourhood of 
Edinburgh. xiii. 39. 
on the fresh water limestone of Burdiehouse, 
belonging to the carboniferous group of rocks, 
xiii. 169. 
ROEBUCK (DR JOHN), on the ripening and filling 
ofcom. H. i. 17. 
——— biographical account of. H. App. iv. 65. 
account of certain phenomena observed in 
the air vault of the furnaces of the Devon Iron 
Works ; together with some practical remarks on 
blast furnaces. v. 31. 
RUSSELL (JAMES), account of experiments on anti- 
mony. H. i. 16. 
singular variety of hernia. v. 23. 
RUSSIA; dissertation on the climate of. P.C. ii. 218, 
RUTHERFORD (DR DANIEL), description of an 
improved thermometer. P. C. iii. 247. 
RYKUM, account of the hot springs near Rykum, in 
Iceland. P. C. iii. 127. 
RYTHMICAL MEASURES, an essay on. 
ii. 55. 
L. C, 
SALINE SOLUTIONS, on the influence of the airin 
determining the crystallization of. xi. 114. 
SALMON, observations on the natural history of the. 
xii. 462, 
SALTS, on water as a constituent of. xi. 114, 
SCORESBY (REV. WILLIAM), description of 
some remarkable effects of unequal refraction, ob- 
served at Bridlington Quay in the summer of 1826. 
xi. 8. 
SCORESBY, Junior (WILLIAM), description of a 
magnetimeter, being a new instrament for mea- 
suring magnetic attractions, and finding the dip of 
the needle. ix. 243. 
description of some remarkable atmospheric 
reflections and refractions, observed in the Green- 
land Sea. ix. 299. 
observations on the errors in the sea-rates of 
chronometers. ix. 353. i 
electro-magnetic experiments and observa- 
tions. ix. 465. 
SEA-SALT, on anew method for purifying sea salt. 
H. i. 19. 
SEA-WATER, an analysis of. viii. 205. 
SEYMOUR (LORD WEBB), observations upon 
some geological appearances in Glen Tilt. vii. 303. 
623 
SINGULTUS, cases of obstinate. H. i. 27. 
SKULL, explanation of the old word. H. vy. 29. 
SLEEP, remarkable case of Margaret Lyall, who con- 
tinued in a state of sleep for nearly six weeks. 
viii. 249. . 
SOCIETY, ROYAL, OF EDINBURGH, history of. 
H. i. 3. 
charter of. i. 7. 
carta nova erectionis Societatis Regis Edin- 
burgi, 1808. H. vi. 3. 
laws of, in 1783. H. i. 11. 
laws of, enacted 23d May 1811. H. vi. 9. 
laws of the Society, enacted 23d May 1811, 
26th February 1820, and 24th January 1923. 
ix. 495. 
laws of the, enacted 23d May 1811, and al- 
tered on the 26th February 1820, 24th January 
1823, 13th January 1824, and 9th January 1826. 
x. 449, 
copy of the laws of the Society. xi. 510. 
copy of the laws of the Society, January 18. 
xiii. 
motion of Dr Graham to alter the seventeenth 
law, in so far “ as to do away the appointment, at 
future elections, of presidents to the Physical and 
Literary Classes, and to add two to the present 
number of vice-presidents.” xi. 505, and 508. 
resolution to add an assistant curator to the 
office-bearers in Council, unanimously agreed to. 
xi. 516. 
motion of Sir William Hamilton relative to the 
election of foreign and honorary members, and to 
certain improvements he had to suggest in the con- 
stitution of the Society. xiii. 571, 572, and 573. 
motion of Dr Traill to modify the laws regard- 
ing honorary and foreign members. xiii. 575. 
motion to alter the thirteenth law, so far as 
“that ballots for the admission of members may 
take place at any ordinary meeting of the So- 
ciety during the session,” unanimously agreed to. 
xii. 550. 
motion to give powerto the Council to dispense 
with the exaction of fees of entrance and annual 
contribution in certain cases, unanimously agreed 
to. xi. 519. 
motion of Sir Henry Jardine to alter the laws 
regarding fees and compositions. Agreed to. xiii. 
571 and 572. 
motion of Lord Greenock to open a subscrip- 
tion to defray certain charges attendant upon the 
meeting of the British Association for the advance- 
ment of science, to be held in Edinburgh. Agreed 
to. xiii. 569. 
list of office-bearers 1788. H. i. 98. 
list of office-bearers 1790. H. ii. 34, 
list of office-bearers 1799. _H. iii. 27. 
office-bearers of the Physical and Literary 
Classes. H. iii. 28, 
1836. 
