Frnm tar Ne.p.York Mirror.
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2he Mirrors Qf tee We&.-hu OSWS SO VI

 fer. in a late number of the Oasis, mas ad

 vanced highly poetic, and yet plauSiDle theory. to account for the gOrgeOusnesS Of oui aT1tun1naI sunsets. The writer considers the great American lakes as vast mirrors, spread horizontally upon the earth, refiectlng the rays of the sun that fall upon them, according tofhe optical laws that govern this pheDom- enon. This theory accounts for the succcS- sive flashes of golden and scarlet light so of- fen observed to rise and blend and deepen the west, as the sun approaches the horizon, and sinks below it, by the supposition that each lake, one after the other, lends its re- flecting light to the visible portion of the at mosphere, and thus as one fades, another filings its radiance across the heavens, and acting on medium prepared for its recep- tion, prolongs the splendid pageant. The autumnal forests, whose rainbow hues are re- fected in these lakes, may, perhaps, also ald in imparting richness to the scene, by being again reflected from the water to the sky But let the meteorologist speak for himself:

 "We have for years noticed these appear ances, and marked the fact, that in the early part of September, the sunsets are of unusual brilliancy, and more prolonged than at other times. They are at this season, immediately after the sun goes down, accompanied by pencils, or streamers of the richest light, which diverging from the position ot the sun, appear above the horizon, and are sometimes so we'll defined that they can be distinctly traced to the zenith. At other seasons of the year, clouds just below the horizon at sunset' produce somewhat similar result in the for nation of brushes oflight; and elevated ran ges of mountains, by interceptlng and dlvld- ing the rays, whether direct or reflected, ef- feet he same appearances; but ln this case there are no elevated mountains, and on the cloudless. The uniformity of these pencils years, prove the permanency of their cause, and lead us to trace their origin to the pecu- liar confguration of the country bordering on the great lakes. At the time of the year these streamers are the most distinct, line drawn from this point, (Oswego) to the sun, would pass over small part of the west end of Lake Ontario, the greatest diameter of Lake Huron, and across considerable DOT tion of Lake Superior. From considerations connected with the figure of the earth, and the relative position of the sun and the lakes, with the hills that border Lake Huron on the east, it appears clear to us that the broken line of these hills acts the part of clouds or mountains in other circumstances, in inter- cepting and dividing into pencils the broad mass of light reflected from the Huron, and thus creating those splendid streamers, that, with us, as it were, the commencement of au- tumn is marked As the sun still advances to the south, the pencils formed by the high lands are lost to us, but in their place come two broad ones, caused by the feebler re- flective powers of the isthmuses that separate St. Clair from the Huron, and the former from Lake Erie. This occurs not far from the middle of September, when the sun sets a few degress north of west, and can be ob- served nearly month. These interruptions ofthe brilliance of the west are not however, of the duration of those effected by the hills, as the sun has scarcely time to leave the sur- face of Huron before these pencils and breaks are all abruptly melted into the rich dark crimson that floats up from the Michigan, or the mighty Super fur. Aftor tflC SUutfivrH a~- clination of the sun has become such that the Huron range of hills is to the northward ot the range of light reflected to us, these pen cils disappear from the heavens, apparently and do not return, until, with another season and a renewed atmosphere, the sun is found in the same position. The reason of this is the whole of the Michigan peninsula is SO lev el that it does not break the reflected ligh from that lake l; and the broader ones, made by breaks in the chain of lakes from Erie te Huron, are not of a nature to be SO distinctly marked as those produced by the interception of rays by hills or clouds"

 Boston Ladies eighty gears ago.-Ws find, in the American Annals, an account of the an- niversary of Society for Encouraging In- dustry, held in 1753, on which occasion Bos- lo ;rhf ( Tn the afternoon, about 300 young female spin mon at their spinning wheels. The wheels were placed regularly in three rows, and a female was seated at each wheel. The weavers also appeared cleanly dressed, in garments of their own weaving. One of them, working at loom on stage, was car- ried on mems shoulders, attended with mu- sic. An immense number of spectators were present at this interesting spectacle. The Rev. Dr. Cooper preached discourse, and a collection was made for the benefit of the institution"

 Ladies of Boston whirling three hundred spinning wheels These were afterwards the matrons who refused British tea-and who never saw piano. Wonder if a thou sand delicate ladies could not now be seen in the city, at their pianos, where one old-fash- toned rosy damsel could be found at the healthy exercise ofthe spinning wheel!

 From Me National Intelligencer

 Domestic Sik.-This morning, our venera- ble fellow-citizen, Adam Lindsay, presented himself as juror in our court clad in a full suit of silk the product of worms of his own rearing, which was reeled, spun and wove in his own family, and with the exception of the coloring and dressing, entirely manufactured under his own roof. It consists of frock coat vest, and pantaloons, made of the coars.

 CT part or floss of the cocoon, and is of a firm.