There was a large table in the middle of this long room, and several glass retorts, and other chemical vessels, were ranged upon shelves; wooden benches were placed on each side of the table. The grandmother, to whom the little girl had referred for a clear explanation, could not, however, tell Forester very exactly the use of the retorts; but she informed him that many of the manufacturers in Edinburgh sent their sons hither twice a-week; and Dr. Campbell, and Mr. Henry Campbell, and some other gentlemen, came by turns to instruct them. Forester recollected now that he once heard Henry talking to his father about a scheme for teaching the children of the manufacturers of Edinburgh some knowledge of chemistry, such as they might afterwards apply advantageously to the arts and every-day business of life. "I have formed projects, but what good have I ever actually done to my fellow-creatures?" said Forester to himself. With melancholy steps he walked to examine every thing in the room. "Dr. Campbell sits in this arm-chair, does not he? And where does Henry sit?" The old woman placed the chairs for him as they usually were placed. Upon one of the shelves there was a slate, which, as it had been written upon, the little girl had put by very carefully; there were some calculations upon the weight of different gases, and the figures Forester knew to be Henry's: he looked at every thing that was Henry's with pleasure. "Because I used to be so rough in my manner to him," said Forester to himself, "I dare say that he thinks I have no feeling, and I suppose he has forgotten me by this time: I deserve, indeed, to be forgotten by every body! How could I leave such friends!" On the other side of the slate poor Forester saw his own name written several times over, in his friend's hand-writing, and he read two lines of his own poetry, which he remembered to have repeated to Henry the day that they walked to Arthur's Seat. Forester felt much pleasure from this little proof of his friend's affection. "Now won't you look at our nice rooms?" said the child, who had waited with some patience till he had done pondering upon the slate.