root out one, ungodly feeling; to correct even one, the smallest sin to which we are habituated-if we may venture to call any thing small which is offensive to the pure vision of the Most High.

We scarcely expect to be understood, to the full extent of our meaning, by any but those who, having come to be like-minded with their Lord, have learned to know no misery equal to the consciousness of sin, no desire so intense as to be holy in his sight, no hatred so deep as towards iniquity, though parted from its eternal consequences. But I could wish that the less experienced would take it on the word of those who are before them; for if honest in religion, they will come to this mind at some time. It is then that the heart becomes conscious of the mischief of every habit, of every inclination, or taste, or feeling, that that has been engendered by example, or cultivated by indulgence. Then the tossed and troubled spirit has cause to say, Why was I encouraged in these feelings, till they have become as natural to me as to think or breathe? Why did I feed my imagination. with these images, till I find it impossible to expel them from my mind? Where did I learn this taste for vanities, that seems determined to go with me even into Heaven? I do not know whether what we hear be all a fiction, or whether those who at the altar on their knees declare that the memory of sin is grievous to them, and the burthen of it intolerable, have any such sensations as their words express but if they have, I am sure they cannot thank their parents for having poured one drop unnecessary of bitter memory into that full cup, nor themselves for having voluntarily added one feather's weight to that too heavy burthen.

Admit that the thistles may be rooted out-that the girl who is taught vanity, will not be vain when she becomes a christian woman, and the youth who is encouraged in oppression, rivalry and pride, will not be contentious or dissatisfied when he becomes a christian man -still be it remembered, it is no magick touch of the ce

lestial wand that converts the bond-slave of earth into the meet inheritor of heaven. It can do so, we know-but generally, as regards the sanctification of the heart after it has been pardoned and renewed, the process is a long, and often very painful one. It is by the fire the gold is purified. By many a painful excision the eye is made single. Sorrow after sorrow comes-draught after draught of misery is drained-and the heart has sometimes to be buried beneath the wreck of every thing it has loved and delighted in, before earth and self can be crushed out of it. Why should we be so mad, so unjust to our children and cruel to ourselves, as to increase the difficulty of the cure, because confident it will in the issue be performed? Why do we plant our ground with thistles, because after years of labour we can root them out?

CONVERSATIONS ON GEOLOGY.

CONVERSATION XVIII.

Specimens of Lead-Arsenic-Red Marble-Lias-Alum-Fossils. MRS. L. Before we begin with our new subjects, I promised to show you a few specimens of Lead. In its common form I need not introduce it to you. Fig. 1. is Foliated Galena (Lead); it is very brilliant; you may crumble it into thousands of pieces; but each piece, of whatever size, will have the cubic form. Fig. 2. is a Carbonate of Lead, (Lead and Carbon)-Fig. 3. an Arsenate of Lead-(Lead and Arsenic.) We will now proceed to another formation.

MAT.-May I first enquire what is Arsenic?

MRS. L.-It is a mineral very generally diffused and intermixed with others. You might at first sight mistake it for Lead, but it is easily distinguished from other metals by the smell of Garlic it emits when struck with a hammer or heated.

"The Strata we have been examining are succeeded by a species of stone, often called Bath-stone, from its abundant occurrence in the vicinity of that city, and FreeStone, or Oolite, of which Portland Stone is a notorious variety. There then commonly occur various Sandstones, with veins of Chert and Oxides of Iron; and lastly we arrive at Chalk, and superincumbent Alluvial matter." Of all these we must speak in order. But in referring to a variety of books, in order to extract from them what may be most suitable to your progress, I find some difficulty in determining what order should be now observed, every work differing in some degree from others in the arrangement, though not contradicting each other in effect. It is not of very much consequence which of these substances we place first; since they do not, as I have already told you, occur regularly one above another every where, but some in one part of the country and some in another, though when together tolerably regular in position: I must only beg, that if, in the first geological book you open, you find that first which I have placed second, you will not hastily conclude that I have taught you wrong. We will speak first of what is called the New Red Sandstone, Red Rock, Red Ground, or Red Marle, for all these names are given to it by different writers. It is a very extensive deposit. Its texture is very various. It appears sometimes as a reddish Marle or Clay, sometimes as a Sandstone; sometimes the Clay and Sandstone are interstratified or pass the one into the other; and it will further appear that it is associated with, or contains beds of a conglomerate, consisting of masses of different rocks cemented by Marle or by Sand. When this deposit appears as a Sandstone, its characters differ greatly in different places; it was occasionally calcareous, and sometimes of a slaty texture. Above all, this extensive deposit is remarkable for containing masses or beds of Gypsum, and the great Rock-Salt formation of England ocuurs within it, or is subordinate to it; in some places the Coal Strata dip beneath it."