The Western boundary, consisting of the Ohio, Big Sandy and Cumberland mountain, having been established while I was out of the country, I have never had occasion to inquire whether they were actually surveyed, and with what degree of accuracy. But this fact being well known to yourself particularly, and to others who have been constantly present in the State, you will be more competent to decide what is to be done in that quarter. I presume, indeed, that this boundary will constitute the principal and most difficult part of the operations of the General Surveyor.
The injunctions of the act to note the magnetic variations merit diligent attention. The law of those variations is not yet sufficiently known to satisfy us that sensible changes do not sometimes take place at small intervals of time and place. To render these observations of the variations easy, and to encourage their frequency, a copy of a table of amplitudes should be furnished to every surveyor, by which, wherever he has a good Eastern horizon, he may, in a few seconds, at sunrise, ascertain the variation. This table is to be found in the book called the "Mariner's Compass Rectified;" but more exactly in the "Connaissance des Tems" for 1778 and 1788, all of which are in the library of Congress. It may perhaps be found in other books more easily procured, and will need to be extracted only from 36½° to 40° degrees of latitude.
III. The Astronomical Survey. This is the most important of all the operations; it is from this alone we are to expect real truth. Measures and rhumbs taken on the special surface of the earth, cannot be represented on a plain surface of paper without astronomical corrections; and, paradoxical as it may seem, it is nevertheless true, that we cannot know the relative position of two places on the earth, but by interrogating the sun, moon, and stars. The observer must, therefore, correctly fix, in longitude and latitude, all remarkable points from distance to distance. Those to be selected of preference are the confluences, rapids, falls and ferries of water courses, summits of mountains, towns, court-houses, and angles of counties, and where these points are more than a third or half a degree distant, they should be supplied by observations of other points, such as mills, bridges, passes through mountains, &c., for in our latitudes, half a degree makes a difference of three-eighths of a mile in the length of the degree of longitude. These points first laid down, the intermediate delineations to be transferred from the particular surveys to the general map, are adapted to them by contractions or dilatations. The observer will need a best Hadley's circle of Broda's construction, by Troughton, if possible, (for they are since Ramsden's time,) and a best chronometer.
Very possibly an equatorial may be needed. This instrument set to the observed latitude, gives the meridian of the place. In the lunar observations at sea this element cannot be had, and in Europe by land, these observations are not resorted to for longitudes, because at their numerous fixed observations they are prepared for the better method of Jupiter's satellites. But here, where our geography is still to be fixed by a portable apparatus only, we are obliged to resort, as at sea, to the lunar observations, with the advantage, however, of a fixed meridian. And although the use of a meridian in these observations is a novelty, yet, placed under new circumstances, we must countervail their advantages by whatever new resources they offer. It is obvious that the observed distance of the moon from the meridian of the place, and her calculated distance from that of Greenwich at the same instant, give the difference of meridians, without dependence on any measure of time; by addition of the observations, if the moon be between the two meridians, by subtraction if east or west of both; the association, therefore, of this instrument with the circular one, by introducing another element, another process and another instrument, furnishes a test of the observations with the Hadley, adds to their certainty, and, by its corroborations, dispenses with that multiplication of observations which is necessary with the Hadley when used alone. This idea, however, is suggested by theory only; and it must be left to the judgment of the observer who will be employed, whether it would be practicable and useful. To him, when known, I shall be glad to give further explanations. The cost of the equatorial is about the same with that of the circle, when of equal workmanship.
Both the surveyor and astronomer should journalize their proceedings daily, and send copies of their journals monthly to the Executive, as well to prevent loss by accident, as to make known their progress.
IV. Mineralogical Survey.—I have never known in the United States but one eminent mineralogist, who could have been engaged on hire. This was a Mr. Goudon from France, who came over to Philadelphia six or seven years ago. Being zealously devoted to the science, he proposed to explore the new field which this country offered; but being scanty in means, as I understood, he meant to give lectures in the winter which might enable him to pass the summer in mineralogical rambles. It is long since I have heard his name mentioned, and therefore do not know whether he is still at Philadelphia, or even among the living. The literary gentlemen of that place can give the information, or perhaps point out some other equal to the undertaking.
I believe I have now, Sir, gone over all the subjects of your letter,—which I have done with less reserve to multiply the chances of offering here and there something which might be useful. Its greatest merit, however, will be that of evidencing my respect for your commands, and of adding to the proofs of my great consideration and esteem.
TO M. DUPONT DE NEMOURS.
Poplar Forest, April 24, 1816.
I received, my dear friend, your letter covering the constitution for your Equinoctial republics, just as I was setting out for this place. I brought it with me, and have read it with great satisfaction. I suppose it well formed for those for whom it was intended, and the excellence of every government is its adaptation to the state of those to be governed by it. For us it would not do. Distinguishing between the structure of the government and the moral principles on which you prescribe its administration, with the latter we concur cordially, with the former we should not. We of the United States, you know, are constitutionally and conscientiously democrats. We consider society as one of the natural wants with which man has been created; that he has been endowed with faculties and qualities to effect its satisfaction by concurrence of others having the same want; that when, by the exercise of these faculties, he has procured a state of society, it is one of his acquisitions which he has a right to regulate and control, jointly indeed with all those who have concurred in the procurement, whom he cannot exclude from its use or direction more than they him. We think experience has proved it safer, for the mass of individuals composing the society, to reserve to themselves personally the exercise of all rightful powers to which they are competent, and to delegate those to which they are not competent to deputies named, and removable for unfaithful conduct, by themselves immediately. Hence, with us, the people (by which is meant the mass of individuals composing the society) being competent to judge of the facts occurring in ordinary life, they have retained the functions of judges of facts, under the name of jurors; but being unqualified for the management of affairs requiring intelligence above the common level, yet competent judges of human character, they chose, for their management, representatives, some by themselves immediately, others by electors chosen by themselves. Thus our President is chosen by ourselves, directly in practice, for we vote for A as elector only on the condition he will vote for B, our representatives by ourselves immediately, our Senate and judges of law through electors chosen by ourselves. And we believe that this proximate choice and power of removal is the best security which experience has sanctioned for ensuring an honest conduct in the functionaries of society. Your three or four alembications have indeed a seducing appearance. We should conceive, primá facie, that the last extract would be the pure alcohol of the substance, three or four times rectified. But in proportion as they are more and more sublimated, they are also farther and farther removed from the control of the society; and the human character, we believe, requires in general constant and immediate control, to prevent its being biased from right by the seductions of self-love. Your process produces therefore a structure of government from which the fundamental principle of ours is excluded. You first set down as zeros all individuals not having lands, which are the greater number in every society of long standing. Those holding lands are permitted to manage in person the small affairs of their commune or corporation, and to elect a deputy for the canton; in which election, too, every one's vote is to be an unit, a plurality, or a fraction, in proportion to his landed possessions. The assemblies of cantons, then, elect for the districts; those of districts for circles; and those of circles for the national assemblies. Some of these highest councils, too, are in a considerable degree self-elected, the regency partially, the judiciary entirely, and some are for life. Whenever, therefore, an esprit de corps, or of party, gets possession of them, which experience shows to be inevitable, there are no means of breaking it up, for they will never elect but those of their own spirit. Juries are allowed in criminal cases only. I acknowledge myself strong in affection to our own form, yet both of us act and think from the same motive, we both consider the people as our children, and love them with parental affection. But you love them as infants whom you are afraid to trust without nurses; and I as adults whom I freely leave to self-government. And you are right in the case referred to you; my criticism being built on a state of society not under your contemplation. It is, in fact, like a critic on Homer by the laws of the Drama.