CONTENTS. 
ABSTRACTS FOR THE VERTICAL Force, 
ABSTRACTS FOR DISTURBANCES, ------ adéscnor, Rado ce 
ABSTRACTS FOR THE Macnetic Dr,-..-..--..--..- 
ABSTRACTS FOR THE Tora. InTENsITY, rere rer ewe ett eeeeeee eee weveee 
ABSTRACTS OF THE RESULTS OF THE METEOROLOGICAL OBSERVA- 
TIONS— 
ABSTRACTS FOR THE BAROMETER, -+++----+see-eees Se ctawecswecsicesces eciseo mianisvalenaiehincss Oscaneted 208 
ABSTRACTS FOR THE THERMOMETERS, deneeece seeeee eee eee e eee ten sewn ae ness eeecereetessenceeceees 
ABSTRACTS FOR THE AQUEOUS VAPOUR IN THE ATMOSPHERE, <+--++-0eeeeeeeeeececeessceeaeece 
ABSTRACT FOR THE Force oF WIND, ---++--++--- ++ Raia aiceialsiaiateinieluls's eine ce 
ABSTRACT FOR THE QuANTITY OF CLOUDs, --- 
ABSTRACT FOR THE RAIN GAUGES, «--+-++++++++: 
ERRATA. 
Introduction, page ix., foot-note, for simultaneous at read simultaneous observations at 
— — x., line 6, for Magnetomers read Magnetometers 
— — xxv., line 5, for cos v+@ read cos (vu +f) 
Enter under No. 34, page xxxi. Introduction, the following :— 
Vv 
PAGE 
145 
152 
154 
156 
158 
161 
162 
164 
164 
165 
The effect of the Declination magnet on the Bifilar magnet is zero; the effect of the Balance magnet N. pole E. on 
the Bifilar magnet is—3:15 Sc. div. This correction has not been applied to the observations. 
Enter before Table 15, page xxxv. Introduction :— 
The relative moments of the three magnets were determined by placing their centres successively on the same point 
at right angles to spare magnet suspended in the Declinometer box and observing the deflections; the following 
are their ratios— 
Declination : Bifilar : Balance = 1-000 : 0-828 : 0:185. 
Introduction, page xxiv., line 16, and page xl., line 27, for K read k 
_ — xivi., last line of Table 22, for 21 read 71 
Sept. 264 23 1841, page 4, Balance Thermometer, for 5-13 read 51:3 
Aug. 64 71842, — 58, for 29:43 read 129-43 
Oct. 294 20% 1841, — 74, transpose the observations under Max. and Min. 
July 274 20> 1842, — 93, for 6:68 read 66°8 
— 100, carry foot-note to page 101. 
Introduction, page lii., No. 79, for 24° read 23°. 
