278 



Abstracts of the Makerstoun Observations, 1843. 



Atmospheric Pressure with reference to the Moons Age. — From the means in the Table, and the following 

 means of groups, it is distinctly evident that a maximum of pressure occurs about two days after full Moon, 

 and a minimum of pressure about two days after new Moon ; the same result has been obtained, Table X., for 

 that portion of the atmospheric pressure due to the aqueous vapour. 



12 days till 18 days, Full Moon, 29-668 



15 22 ... -691 



19 26 ... -662 



23 29 ... -608 



27 days till 3 days, New Moon, 29-576 



7 ... -552 



4 11 ... -609 



8 14 ... -668 



Atmospheric Pressure with reference to the Moon's Declination. — The means in the previous Table, and in 

 the following means of groups, indicate two maxima and two minima. The principal maximum occurs about 

 two days before the Moon is on the equator moving northwards ; the two minima are nearly equal, the one 

 occurring when the Moon is farthest north, the other about two days before it is farthest south ; the secondary 

 maximum occurs about one day before the Moon is on the equator moving southwards. 



25 days till 3 days, Moon farthest North, 29-584 



6 ... -605 



4 10 ... -640 



7 13 ... -579 



11 days till 17 days, Moon farthest South, 29-599 



14 ." 20 ... -684 



18 24 ... -669 



21 27 ... -625 



TABLE XVII.- 



-Diurnal Range of the Barometer for each Civil Day, with the Weekly and 

 Monthly Means for 1843. 



Civil 

 Day. 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Kov. 



Dec. 





in. 



in. 



in. 



in. 



in. 



in. 



in. 



in. 



in. 



in. 



in. 



in. 



1 



[ ] 



0^238 



0^326 



0^149 



0^047 



0^325 



01 25 



01 33 



0^153 



[01 22] 



0-260 



0^202 



2 



0060 



•123 



•195 



[ -311] 



•209 



•215 



[ -158] 



•323 



•049 



•171 



•083 



•158 



3 



•558 



•318 



•146 



•207 



•400 



•426 



•278 



•062 



[ •lOS] 



•036 



•360 



[ 308] 



4 



•121 



•660 



•066 



•269 



•290 



[ ^248] 



•103 



•143 



•212 



•032 



•455 



■481 



5 



•392 



[ ^250] 



[ •lOS] 



•434 



•068 



•035 



•332 



•180 



•112 



■185 



[ 359] 



■221 



6 



•396 



•153 



•060 



•410 



•123 



•047 



•274 



[ -111] 



•070 



•544 



•444 



•343 



7 



•404 



•173 



•128 



•194 



[ -167] 



•442 



•062 



•139 



•029 



•081 



•388 



•396 



8 



[0-452] 



•073 



•053 



•434 



•157 



•509 



•194 



•084 



•057 



[ ^349] 



•426 



•309 



9 



1044 



•052 



•123 



[ -251] 



•183 



•460 



[ -161] 



•059 



•102 



•406 



•350 



■077 



10 



0-329 



•049 



•299 



•081 



•182 



•597 



•141 



• 091 



[ ^160] 



■239 



•368 



[ ^200] 



11 



•146 



•052 



•152 



•058 



•131 



[ •281] 



•121 



•034 



•412 



■640 



•456 



■229 



12 



•129 



[ -163] 



[ ^232] 



•330 



•291 



•021 



•173 



■041 



•142 



■472 



[ 326] 



•108 



1.3 



-858 



•287 



•133 



•206 



■178 



•053 



•025 



[ •062] 



•221 



■106 



•104 



•079 



14 



•570 



•159 



•324 



•334 



[ -167] 



•045 



•076 



•075 



• 157 



■250 



•152 



•232 



15 



[ 444] 



•381 



•364 



•153 



•033 



•051 



•159 



.082 



•065 



[ -313] 



•527 



•214 



16 



•713 



•147 



•249 



r -167] 



•071 



•074 



[ ^200] 



.052 



•086 



•244 



•203 



•154 



17 



•087 



•337 



•103 



•088 



•297 



•083 



•519 



.053 



[ .165] 



•363 



•526 



[ ^160] 



18 



•310 



•049 



•206 



•089 



•127 



[ ^098] 



•304 



.102 



•318 



•443 



•129 



•044 



19 



•074 



[ -120] 



[ ^226] 



•130 



•052 



•122 



•117 



.302 



• 152 



•139 



[ -374] 



•110 



20 



•267 



•054 



•448 



•156 



•130 



•088 



•285 



[ ^267] 



• 215 



•472 



•284 



•207 



21 



•247 



•063 



•230 



•076 



[ ^092] 



•168 



•271 



.510 



•292 



•283 



•445 



•218 



22 



[ -210] 



•069 



•122 



■130 



•060 



•096 



•295 



.367 



• 219 



[ -243] 



•655 



•436 



23 



•348 



•138 



•278 



[ ^266] 



•044 



•048 



[ ^211] 



.269 



•083 



•283 



•175 



•286 



24 



•118 



•129 



•275 



•509 



•141 



•037 



•197 



.184 



[ ^205] 



•249 



•276 



[ ^204] 



25 



•204 



•047 



•232 



•509 



•196 



[ ^086] 



• 044 



.087 



• 133 



•030 



•121 



•112 



26 



•153 



[ ^200] 



[ -170] 



•214 



•155 



•120 



•175 



.152 



•342 



•226 



[ ^364] 



•059 



27 



•297 



•132 



•063 



•203 



•073 



•128 



•046 



[ .222] 



• 162 



•228 



•619 



•113 



28 



■285 



•427 



•091 



•180 



[ -142] 



•085 



• 256 



.333 



•119 



•724 



•482 



•048 



29 



[ ^294] 





•081 



•332 



•122 



•062 



• 383 



•464 



•194 



[ 332] 



•509 



•156 



30 



•395 





•669 



[ ^228] 



•088 



•046 



[ ^205] 



•115 



• 183 



•274 



•446 



•385 



31 



•397 





•139 





•218 





•092 



•037 





•283 





[ -175] 



Mean 



0342 



0^180 



0206 



0235 



0^151 



0^169 



0^194 



0^166 



0^165 



0^285 



0^355 



0^207 



