THE RAILWAY TRAIN.
I LIKE TO SEE IT LAP THE MILES, AND LICK THE VALLEYS UP, AND STOP TO FEED ITSELF AT TANKS; AND THEN, PRODIGIOUS, STEP
AROUND A PILE OF MOUNTAINS, AND, SUPERCILIOUS, PEER IN SHANTIES BY THE SIDES OF ROADS; AND THEN A QUARRY PARE
TO FIT ITS SIDES, AND CRAWL BETWEEN, COMPLAINING ALL THE WHILE IN HORRID, HOOTING STANZA; THEN CHASE ITSELF DOWNHILL
AND NEIGH LIKE BOANERGES; THEN, PUNCTUAL AS A STAR, STOP—DOCILE AND OMNIPOTENT— AT ITS OWN STABLE DOOR. EMILY DICKINSON
The Circle in Three Positions.
In order to understand the sketches on this page, you must place a large bowl on a table in front of you, so that its top will be exactly opposite the level of your eyes. You can manage this by putting some books on the table for the bowl to rest upon, piling them up until just the right height is reached. Then sit directly in front of the bowl, and at some distance from it, as you would naturally do when making a sketch. Hold your pencil straight out in front, at arm's length, so as to hide the entire upper edge of the bowl. If the top of the bowl is exactly opposite your eyes, your pencil will be exactly horizontal when it hides the edge from you. You will not be able to see into the bowl, nor to find that the edge curves above or below the pencil. The appearance of the circular top, in this position, will be a horizontal line.