. The dictionary of arts, sciences and manufactures ... embracing in all nearly three thousand articles on arts and sciences. st always westerly, or south-westerly; so that when thewind here comes up at east and north-east, it is checked by acontrary gale as soon as it reaches the ocean. By this means,agreeably to the second remark, the air over this island accu-mulates, and the mercury is high. In countries wdiere thewinds are under different circumstances, the same rule willnot hold ; and even in England, Dr. Halley had observed themercury to be as low as 29 inches upon an easterly wind, but
. The dictionary of arts, sciences and manufactures ... embracing in all nearly three thousand articles on arts and sciences. st always westerly, or south-westerly; so that when thewind here comes up at east and north-east, it is checked by acontrary gale as soon as it reaches the ocean. By this means,agreeably to the second remark, the air over this island accu-mulates, and the mercury is high. In countries wdiere thewinds are under different circumstances, the same rule willnot hold ; and even in England, Dr. Halley had observed themercury to be as low as 29 inches upon an easterly wind, butthen it blew exceedingly hard, and therefore ought to be accounted for by the third remark. 5. In calm, frosty weather, the mercury generally standshigh; perhaps because it seldom freezes but when the windscome out of the eastern and north-eastern quarters; or at leastthose winds blow at no great distance; for the northern partsof Germany, Denmark, Sweden, Norway, and all that tractwhence north-east winds come, are subject, during the winter,to almost continual frost, which condenses the lower air, anil 29.—Vol. II. H. :ierBiirtar. - A«&fishy of lences at fy night ©n tlie subject oi^Tne 6hange in OurClimate and Its Causes. That the cli-mate- lias changed in recent years lieShowed by comparison of official tempera-ture records. The records show, hefUkid, that since 1876 there has been anIncrease of heat in this city, except lorthe years 1885, 1886 and 18S8. Thoseyears show a slight deficiency. In 18S9 the surplus heat for Januaryiras 21 degrees, while the same month thisyear shows an excess of 328 degrees meantemperature above normal, an increase ofi 156 degrees for February, 44 for Marchanc. 152 for April, the month of Mav clos-ing with an excess since Jan. 1 6f 789degrees, or 250 more than for the sameperiod for 1889. This great increase as-sures us of two •things: First, that thegreatest excess of heat occurs in ourcoldest months; second, that the monthscf Ju
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