Of two men, one of whom knows nothing about a subject, and, what is extremely rare, knows that he knows nothing, and the other really knows something about it, but thinks that he knows all,—what great advantage has the latter over the former? which is the best to deal with? I do not know that knowledge amounts to anything more definite than a novel and grand surprise, or a sudden revelation of the insufficiency of all that we had called knowledge before; an indefinite sense of the grandeur and glory of the universe. It is the lighting up of the mist by the sun. But man cannot be said to know in any higher sense, [any more] than he can look serenely and with impunity in the face of the sun.[147] A culture which imports much muck from the meadows and deepens the soil, not that which trusts to heating manures and improved agricultural implements only. * * * * * How, when a man purchases a thing, he is determined to get and get hold of it, using how many expletives and how long a string of synonymous or similar terms signifying possession, in the legal process! What’s mine’s my own. An old deed of a small piece of swamp land, which I have lately surveyed at the risk of being mired past recovery, says that “the said Spaulding his Heirs and Assigns, shall and may from this (?) time, and at all times forever hereafter, by force and virtue of these presents, lawfully, peaceably and quietly have, hold, use, occupy, possess and enjoy the said swamp,” etc. * * * * * Magnetic iron, being anciently found in _Magnesia_,—hence _magnes_, or magnet,—employed by Pliny and others. Chinese appear to have discovered the magnet very early, A. D. 121 and before (?); used by them to steer ships in 419; mentioned by an Icelander, 1068; in a French poem, 1181; in Torfæus’ History of Norway, 1266. Used by De Gama in 1427. Leading stone, hence loadstone. The peroxide of hydrogen, or ozone, at first thought to be a chemical curiosity merely, is found to be very generally diffused through nature. The following bears on the floating ice which has risen from the bottom of the meadows. Robert Hunt says: “Water conducts heat downward but very slowly; a mass of ice will remain undissolved but a few inches under water on the surface of which ether or any other inflammable body is burning. If ice swam beneath the surface, the summer sun would scarcely have power to thaw it; and thus our lakes and seas would be gradually converted into solid masses.” The figures of serpents, of griffins, flying dragons, and other embellishments of heraldry, the eastern idea of the world on an elephant, that on a tortoise, and that on a serpent again, etc., usually regarded as mythological in the common sense of that word, are thought by some to “indicate a faint and shadowy knowledge of a previous state of organic existence,” such as geology partly reveals.