Chapter XXVI: Meteorological Tables (4)

==========+=======================================================================
Height, in| Temperature of external air——degrees Fahrenheit.
feet. |
+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----
| -20°| -10°| 0° | 10°| 20°| 30°| 40°| 50°| 60°| 70°| 80°| 90°| 100°
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----
10| .013| .013| .012| .012| .012| .012| .011| .011| .011| .011| .010| .010| .010
20| .026| .025| .025| .024| .023| .023| .023| .022| .022| .021| .021| .020| .020
30| .039| .038| .037| .036| .035| .034| .034| .033| .032| .032| .031| .030| .030
40| .052| .050| .049| .048| .047| .046| .045| .044| .043| .042| .041| .040| .040
| | | | | | | | | | | | |
50| .065| .063| .061| .060| .059| .058| .056| .055| .054| .053| .052| .051| .050
60| .077| .076| .074| .072| .070| .069| .068| .066| .065| .063| .062| .061| .059
70| .090| .088| .086| .084| .082| .081| .078| .077| .076| .074| .072| .071| .069
80| .103| .101| .098| .096| .094| .092| .090| .088| .086| .084| .082| .081| .079
90| .116| .113| .111| .108| .105| .104| .101| .099| .097| .095| .093| .091| .089
| | | | | | | | | | | | |
100| .129| .126| .123| .120| .117| .115| .112| .110| .108| .105| .103| .101| .099
110| .142| .139| .135| .132| .129| .126| .123| .121| .119| .116| .113| .111| .109
120| .155| .151| .148| .144| .140| .138| .134| .132| .129| .126| .124| .121| .119
130| .168| .164| .160| .156| .152| .149| .146| .143| .140| .137| .134| .131| .129
140| .181| .176| .172| .168| .164| .161| .157| .154| .151| .147| .144| .141| .139
| | | | | | | | | | | | |
150| .194| .189| .185| .180| .176| .172| .168| .165| .162| .158| .155| .152| .149
160| .206| .201| .197| .192| .187| .183| .179| .176| .172| .168| .165| .162| .158
170| .219| .214| .209| .204| .199| .195| .190| .187| .183| .179| .175| .172| .168
180| .232| .227| .222| .216| .211| .206| .202| .198| .194| .189| .185| .182| .178
190| .245| .239| .234| .228| .222| .218| .213| .209| .204| .200| .196| .192| .188
| | | | | | | | | | | | |
200| .258| .252| .246| .240| .234| .229| .224| .220| .215| .210| .206| .202| .198
210| .271| .264| .258| .252| .246| .240| .235| .231| .226| .221| .216| .212| .208
220| .284| .277| .270| .264| .257| .252| .246| .242| .236| .231| .227| .222| .218
230| .296| .289| .283| .276| .269| .263| .257| .253| .247| .242| .237| .232| .228
240| .309| .302| .295| .288| .281| .275| .269| .264| .258| .252| .248| .242| .238
| | | | | | | | | | | | |
250| .322| .314| .307| .300| .293| .286| .280| .275| .269| .263| .258| .253| .248
260| .335| .327| .319| .311| .304| .297| .291| .285| .279| .273| .268| .263| .257
270| .348| .339| .331| .323| .316| .309| .302| .296| .290| .284| .278| .273| .267
280| .360| .352| .344| .335| .328| .320| .314| .307| .301| .294| .288| .283| .277
290| .373| .364| .356| .347| .339| .332| .325| .318| .311| .305| .299| .293| .287
| | | | | | | | | | | | |
300| .386| .377| .368| .359| .351| .343| .336| .329| .322| .315| .309| .303| .297
310| .399| .389| .380| .371| .363| .354| .347| .340| .333| .326| .319| .313| .307
320| .412| .402| .392| .383| .374| .366| .358| .351| .343| .336| .329| .323| .317
330| .424| .414| .404| .395| .386| .377| .369| .362| .354| .347| .340| .333| .326
340| .437| .427| .416| .407| .397| .389| .380| .373| .365| .357| .350| .343| .336
| | | | | | | | | | | | |
350| .450| .439| .429| .419| .409| .400| .392| .384| .376| .368| .360| .353| .346
360| .463| .451| .441| .430| .421| .411| .403| .394| .386| .378| .370| .363| .356
370| .476| .464| .453| .442| .432| .423| .414| .405| .397| .389| .380| .373| .366
380| .488| .476| .465| .454| .444| .434| .425| .416| .408| .399| .391| .383| .375
390| .501| .489| .477| .466| .455| .446| .436| .427| .418| .410| .401| .393| .385
| | | | | | | | | | | | |
400| .514| .501| .489| .478| .467| .457| .447| .438| .429| .420| .411| .403| .395
410| .527| .513| .501| .490| .479| .468| .458| .449| .440| .430| .421| .413| .405
420| .539| .526| .513| .502| .490| .480| .469| .460| .450| .441| .431| .423| .415
430| .552| .538| .525| .513| .502| .491| .480| .470| .461| .451| .442| .433| .425
440| .565| .551| .537| .525| .513| .502| .491| .481| .471| .462| .452| .443| .434
| | | | | | | | | | | | |
450| .578| .563| .550| .537| .525| .513| .503| .492| .482| .472| .462| .453| .444
460| .590| .575| .562| .549| .537| .525| .514| .503| .493| .482| .472| .463| .454
470| .603| .588| .574| .561| .548| .536| .525| .514| .503| .493| .482| .473| .464
480| .616| .600| .586| .572| .560| .547| .536| .524| .514| .503| .493| .483| .474
490| .628| .613| .598| .584| .571| .559| .547| .535| .524| .514| .503| .493| .483
| | | | | | | | | | | | |
500| .641| .625| .610| .596| .583| .570| .558| .546| .535| .524| .513| .503| .493
510| .654| .637| .622| .608| .594| .581| .569| .557| .545| .534| .523| .513| .503
520| .666| .650| .634| .620| .606| .593| .580| .568| .556| .545| .533| .523| .513
530| .679| .662| .646| .631| .617| .604| .591| .578| .566| .555| .544| .533| .522
540| .691| .675| .658| .643| .629| .615| .602| .589| .577| .565| .554| .543| .532
====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====

TABLE IV.——FOR REDUCING OBSERVATIONS OF THE BAROMETER TO SEA
LEVEL.——_Continued._

==========+=======================================================================
Height, in| Temperature of external air——degrees Fahrenheit.
feet. |
+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----
| -20°| -10°| 0° | 10°| 20°| 30°| 40°| 50°| 60°| 70°| 80°| 90°| 100°
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----
550| .704| .687| .670| .655| .640| .626| .613| .600| .587| .575| .564| .553| .542
560| .717| .699| .683| .667| .652| .638| .624| .611| .598| .586| .574| .563| .552
570| .729| .712| .695| .679| .663| .649| .635| .622| .608| .596| .584| .573| .562
580| .742| .724| .707| .690| .675| .660| .646| .632| .619| .606| .595| .583| .571
590| .754| .737| .719| .702| .686| .672| .657| .643| .629| .617| .605| .593| .581
| | | | | | | | | | | | |
600| .767| .749| .731| .714| .698| .683| .668| .654| .640| .627| .615| .603| .591
610| .780| .761| .743| .726| .709| .694| .679| .665| .650| .637| .625| .613| .601
620| .792| .774| .755| .738| .721| .705| .690| .675| .661| .648| .635| .623| .611
630| .805| .786| .767| .749| .732| .717| .701| .686| .671| .658| .645| .633| .620
640| .817| .798| .779| .761| .744| .728| .712| .697| .682| .668| .655| .643| .630
| | | | | | | | | | | | |
650| .830| .811| .791| .773| .755| .739| .723| .708| .692| .679| .666| .653| .640
660| .843| .823| .803| .785| .767| .750| .734| .718| .703| .689| .676| .662| .650
670| .855| .835| .815| .797| .778| .761| .745| .729| .713| .699| .686| .672| .660
680| .868| .847| .827| .808| .790| .773| .756| .740| .724| .709| .696| .682| .669
690| .880| .860| .839| .820| .801| .784| .767| .750| .734| .720| .706| .692| .679
| | | | | | | | | | | | |
700| .893| .872| .851| .832| .813| .795| .778| .761| .745| .730| .716| .702| .689
710| .905| .884| .863| .844| .824| .806| .789| .772| .755| .740| .726| .712| .698
720| .918| .896| .875| .855| .836| .817| .800| .782| .766| .751| .736| .722| .708
730| .930| .909| .887| .867| .847| .829| .811| .793| .776| .761| .746| .732| .718
740| .943| .921| .899| .879| .859| .840| .822| .804| .787| .771| .756| .742| .728
| | | | | | | | | | | | |
750| .955| .933| .911| .891| .870| .851| .833| .815| .797| .782| .767| .752| .738
760| .968| .945| .922| .902| .881| .862| .843| .825| .808| .792| .777| .761| .747
770| .980| .957| .934| .914| .893| .873| .854| .836| .818| .802| .787| .771| .757
780| .993| .970| .946| .926| .904| .885| .865| .847| .829| .812| .797| .781| .767
790|1.005| .982| .958| .937| .916| .896| .876| .857| .839| .823| .807| .791| .776
| | | | | | | | | | | | |
800|1.018| .994| .970| .949| .927| .907| .887| .868| .850| .833| .817| .801| .786
810|1.030|1.006| .982| .961| .938| .918| .898| .878| .860| .843| .827| .811| .796
820|1.043|1.018| .994| .972| .950| .929| .909| .889| .871| .854| .937| .821| .805
830|1.055|1.031|1.006| .984| .961| .940| .920| .900| .881| .864| .847| .831| .815
840|1.068|1.043|1.018| .995| .973| .951| .931| .911| .892| .874| .857| .841| .825
| | | | | | | | | | | | |
850|1.080|1.055|1.030|1.007| .984| .962| .942| .922| .902| .885| .867| .851| .835
860|1.093|1.067|1.041|1.019| .995| .974| .952| .932| .913| .895| .877| .860| .844
870|1.105|1.079|1.053|1.030|1.007| .985| .963| .943| .923| .905| .887| .870| .854
880|1.118|1.092|1.065|1.042|1.018| .996| .974| .954| .934| .915| .897| .880| .864
890|1.130|1.104|1.077|1.053|1.030|1.007| .985| .904| .944| .926| .907| .890| .873
| | | | | | | | | | | | |
900|1.143|1.116|1.089|1.065|1.041|1.018| .996| .975| .955| .936| .917| .900| .883
910|1.155|1.128|1.101|1.077|1.052|1.029|1.007| .986| .965| .946| .927| .910| .893
920|1.168|1.140|1.113|1.088|1.064|1.040|1.018| .996| .976| .956| .937| .920| .902
930|1.180|1.152|1.125|1.100|1.075|1.051|1.029|1.007| .986| .967| .947| .929| .912
940|1.193|1.164|1.137|1.111|1.086|1.062|1.040|1.017| .997| .977| .957| .939| .921
| | | | | | | | | | | | |
950|1.205|1.177|1.149|1.123|1.098|1.074|1.051|1.028|1.007| .987| .967| .949| .931
960|1.217|1.189|1.160|1.135|1.109|1.085|1.061|1.039|1.017| .997| .977| .959| .941
970|1.230|1.201|1.172|1.146|1.120|1.096|1.072|1.049|1.028|1.007| .987| .969| .950
980|1.242|1.213|1.184|1.158|1.131|1.107|1.083|1.060|1.038|1.018| .997| .978| .960
990|1.255|1.225|1.196|1.169|1.143|1.118|1.094|1.070|1.049|1.028|1.007| .988| .969
| | | | | | | | | | | | |
1000|1.267|1.237|1.208|1.181|1.154|1.129|1.105|1.081|1.059|1.038|1.017| .998| .979
1010|1.279|1.249|1.220|1.192|1.165|1.140|1.116|1.092|1.069|1.048|1.027|1.008| .989
1020|1.292|1.261|1.232|1.204|1.177|1.151|1.127|1.102|1.080|1.058|1.037|1.018| .998
1030|1.304|1.273|1.243|1.215|1.188|1.162|1.137|1.113|1.090|1.069|1.047|1.027|1.008
1040|1.317|1.285|1.255|1.227|1.199|1.173|1.148|1.123|1.101|1.079|1.057|1.037|1.017
| | | | | | | | | | | | |
1050|1.329|1.298|1.267|1.238|1.211|1.184|1.159|1.134|1.111|1.089|1.067|1.047|1.027
1060|1.341|1.310|1.279|1.250|1.222|1.195|1.170|1.145|1.121|1.099|1.077|1.057|1.037
1070|1.354|1.322|1.291|1.261|1.233|1.206|1.181|1.155|1.132|1.109|1.087|1.067|1.046
1080|1.366|1.334|1.302|1.273|1.244|1.217|1.191|1.166|1.142|1.120|1.097|1.076|1.056
1090|1.379|1.346|1.314|1.284|1.256|1.228|1.202|1.176|1.153|1.130|1.107|1.086|1.065
====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====+=====

TABLE IV.——FOR REDUCING OBSERVATIONS OF THE BAROMETER TO SEA
LEVEL.——_Continued._

==========+=======================================================================
Height, in| Temperature of external air——degrees Fahrenheit.
feet. |
+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----
| -20°| -10°| 0° | 10°| 20°| 30°| 40°| 50°| 60°| 70°| 80°| 90°| 100°
----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----
1100|1.391|1.358|1.326|1.296|1.267|1.239|1.213|1.187|1.163|1.140|1.117|1.096|1.075
1110|1.403|1.370|1.338|1.307|1.278|1.250|1.224|1.198|1.173|1.150|1.127|1.106|1.085
1120|1.416|1.382|1.350|1.319|1.289|1.261|1.235|1.208|1.184|1.160|1.137|1.115|1.094
1130|1.428|1.394|1.361|1.330|1.301|1.272|1.245|1.219|1.194|1.170|1.147|1.125|1.104
1140|1.440|1.406|1.373|1.342|1.312|1.283|1.256|1.229|1.204|1.180|1.157|1.135|1.113
| | | | | | | | | | | | |
1150|1.453|1.418|1.385|1.353|1.323|1.294|1.267|1.240|1.215|1.191|1.167|1.145|1.123
1160|1.465|1.430|1.397|1.365|1.334|1.305|1.278|1.251|1.225|1.201|1.177|1.154|1.133
1170|1.477|1.442|1.409|1.376|1.345|1.315|1.289|1.261|1.235|1.211|1.187|1.164|1.142
1180|1.489|1.454|1.420|1.388|1.357|1.327|1.299|1.272|1.245|1.221|1.197|1.174|1.152
1190|1.502|1.466|1.432|1.399|1.368|1.338|1.310|1.282|1.256|1.231|1.207|1.183|1.161
| | | | | | | | | | | | |
1200|1.514|1.478|1.444|1.411|1.379|1.349|1.321|1.293|1.266|1.241|1.217|1.193|1.171
1210|1.526|1.490|1.456|1.422|1.390|1.360|1.332|1.303|1.276|1.251|1.227|1.203|1.180
1220|1.539|1.502|1.467|1.434|1.401|1.371|1.342|1.314|1.288|1.261|1.237|1.212|1.190
1230|1.551|1.514|1.479|1.445|1.413|1.382|1.353|1.324|1.297|1.271|1.247|1.222|1.199
1240|1.563|1.526|1.491|1.457|1.424|1.393|1.364|1.335|1.307|1.281|1.257|1.232|1.209
| | | | | | | | | | | | |
1250|1.576|1.538|1.502|1.468|1.435|1.404|1.374|1.345|1.317|1.291|1.266|1.242|1.218
1260|1.588|1.550|1.514|1.479|1.446|1.415|1.385|1.356|1.328|1.302|1.276|1.251|1.228
1270|1.600|1.562|1.526|1.491|1.457|1.426|1.396|1.366|1.338|1.312|1.286|1.261|1.237
1280|1.612|1.574|1.538|1.502|1.469|1.437|1.407|1.377|1.348|1.322|1.296|1.271|1.247
1290|1.625|1.586|1.549|1.514|1.480|1.448|1.417|1.387|1.359|1.332|1.306|1.280|1.256
| | | | | | | | | | | | |
1300|1.637|1.598|1.561|1.525|1.491|1.459|1.428|1.398|1.369|1.342|1.316|1.290|1.266
1310|1.649|1.610|1.573|1.536|1.502|1.470|1.439|1.408|1.379|1.352|1.326|1.300|1.275
1320|1.661|1.622|1.584|1.548|1.513|1.481|1.449|1.419|1.390|1.362|1.336|1.309|1.285
1330|1.674|1.634|1.596|1.559|1.525|1.492|1.460|1.429|1.400|1.372|1.346|1.319|1.294
1340|1.686|1.640|1.608|1.571|1.536|1.503|1.471|1.440|1.410|1.382|1.356|1.329|1.304
| | | | | | | | | | | | |
1350|1.698|1.658|1.620|1.582|1.547|1.514|1.482|1.450|1.420|1.393|1.366|1.339|1.313
1360|1.710|1.669|1.631|1.593|1.558|1.524|1.492|1.461|1.431|1.403|1.375|1.348|1.323
1870|1.722|1.681|1.643|1.605|1.569|1.535|1.503|1.471|1.441|1.413|1.385|1.358|1.332
1380|1.735|1.693|1.655|1.616|1.581|1.546|1.514|1.482|1.451|1.423|1.395|1.368|1.342
1390|1.747|1.705|1.666|1.628|1.592|1.557|1.524|1.492|1.462|1.433|1.405|1.377|1.351
| | | | | | | | | | | | |
1400|1.759|1.717|1.678|1.639|1.603|1.568|1.535|1.503|1.472|1.443|1.415|1.387|1.361
1410|1.771|1.729|1.690|1.650|1.614|1.579|1.546|1.513|1.482|1.453|1.425|1.397|1.370
1420|1.783|1.741|1.701|1.662|1.625|1.590|1.556|1.524|1.492|1.463|1.435|1.406|1.380
1430|1.796|1.753|1.713|1.673|1.636|1.601|1.567|1.534|1.503|1.473|1.444|1.416|1.389
1440|1.808|1.765|1.724|1.685|1.047|1.612|1.577|1.545|1.513|1.483|1.454|1.426|1.399
| | | | | | | | | | | | |
1450|1.820|1.777|1.736|1.696|1.658|1.623|1.588|1.555|1.523|1.493|1.464|1.436|1.408
1460|1.832|1.788|1.748|1.707|1.670|1.633|1.599|1.565|1.533|1.503|1.474|1.445|1.418
1470|1.844|1.800|1.759|1.719|1.081|1.644|1.609|1.576|1.543|1.513|1.484|1.455|1.427
1480|1.857|1.812|1.771|1.730|1.692|1.655|1.620|1.586|1.554|1.523|1.493|1.465|1.437
1490|1.869|1.824|1.782|1.742|1.703|1.666|1.630|1.597|1.564|1.533|1.503|1.474|1.446
| | | | | | | | | | | | |
1500|1.881|1.836|1.794|1.753|1.714|1.677|1.641|1.607|1.574|1.543|1.513|1.484|1.456
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