LITMIR.BIZ

      CX. TO PETER COLLINSON

      Philadelphia, 18 April, 1754.

      Sir:—

      Since September last, having been abroad on two long journeys and otherwise much engaged, I have made but few observations on the positive and negative state of electricity in the clouds. But Mr. Kinnersley kept his rod and bells in good order, and has made many.

      Once this winter the bells rang a long time during a fall of snow, though no thunder was heard or lightning seen. Sometimes the flashes and cracks of the electric matter between bell and bell were so large and loud as to be heard all over the house; but by all his observations the clouds were constantly in a negative state, till about six weeks ago, when he found them once to change in a few minutes from the negative to the positive. About a fortnight after that he made another observation of the same kind, and last Monday afternoon, the wind blowing hard at southeast and veering round to northeast, with many thick, driving clouds, there were five or six successive changes from negative to positive, and from positive to negative, the bells stopping a minute or two between every change. Besides the methods mentioned in my paper of September last of discovering the electrical state of the clouds, the following may be used. When your bells are ringing, pass a rubbed tube by the edge of the bell, connected with your pointed rod; if the cloud is then in a negative state, the ringing will stop; if in a positive state, it will continue, and perhaps be quicker. Or suspend a very small cork ball by a fine silk thread, so that it may hang close to the edge of the rod-bell; then, whenever the bell is electrified, whether positively or negatively, the little ball will be repelled and continue at some distance from the bell. Have ready a round-headed glass stopper of a decanter, rub it on your side till it is electrified, then present it to the cork ball. If the electricity in the ball is positive, it will be repelled from the glass stopper, as well as from the bell; if negative, it will fly to the stopper.

       B. Franklin. Ref. 005

      CXI. TO CADWALLADER COLDEN

      Philadelphia, 30 August, 1754.

      Dear Sir:—

      I have now before me your favors of July 23d, and August 15th. I return Mr. Pike’s Philosophia Sacra. His manner of philosophizing is much out of my way.

      I am now about to proceed on my eastern journey, but hope to be at home in the winter, the best season for electrical experiments, when I will gladly make any you desire. In the mean time I should be glad if you would communicate the thoughts you mention, that I may consider them. If you please, direct them to me at Boston.

      There must, I think, be some mistake in what you mention, of my having sent to Mr. Collinson the paper you wrote me on water-spouts. I have the original now by me, and cannot recollect that I ever copied it, or that I ever communicated the contents of it to Mr. Collinson or any one. Indeed, I have long had an intention of sending him all I have wrote, and all I have received from others on this curious subject, without mentioning names; but it is not yet done.

      Our Assembly were not inclined to show any approbation of the plan of union; yet I suppose they will take no steps to oppose its being established by the government at home. Popular elections have their inconveniences in some cases; but in establishing new forms of government, we cannot always obtain what we may think the best; for the prejudices of those concerned, if they cannot be removed, must be in some degree complied with. However, I am of opinion that when troops are to be raised in America, the officers appointed must be men they know and approve, or the levies will be made with more difficulty, and at much greater expense. ^{Ref. 006}

      It is not to be expected that a Quaker Assembly will establish any but Quaker schools; nor will they ever agree to a tax for the payment of any clergy. It is intended by the Society, that the schoolmasters among the Germans shall teach English.

      I am glad the representation is agreeable to your sentiments. The letter to Lord Halifax I suppose your son sends from New York.

      Since my return I have received from Italy a book in quarto, entitled Dell’ Elettricismo Artificiale e Naturale, Libri Due, di Giovambattista Beccaria de’ CC. RR. delle Scuole Pie, printed at Turin, and dedicated to the King. The author professedly goes on my principles; he seems a master of method, and has reduced to systematic order the scattered experiments and positions delivered in my paper. At the end of the first book, there is a letter addressed to the Abbé Nollet, in which he answers some of the Abbé’s principal objections. This letter being translated into French, I send you the translation for your perusal, and will send you the Italian book itself by some future opportunity, if you desire it. It pleases me the more, in that I find the author has been led by sundry observations and experiments, though different from mine, to the same strange conclusion, viz., that some thunder-strokes are from the earth upwards; in which I feared I should for some time have been singular.

      With the greatest esteem and regard I am, dear Sir, &c.,

       B. Franklin.

      P. S.—Please to send me the French piece by the first opportunity, after you have perused it, directed to me at Boston.

      CXII: PLAN OF UNION FOR THE COLONIES

      In anticipation of unpleasant complications with France, the Lords of Trade directed commissioners to be appointed in several of the provinces, to assemble at Albany for the specific purpose of conciliating and attaching to them the Six Nations, whose alliance was of vital importance in case of a war with France. The commissioners met on the 19th of June, 1754. The colonies of New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, Pennsylvania, and Maryland were represented by twenty-five commissioners or delegates. Franklin

Скачать книгу