This section is from the book "The Gardener V3", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
By way of indicating what from a trial we have found to be highly serviceable, and therefore worthy of commendation, we here present an illustration of this very useful garden requisite. For small villa gardens it appears to be peculiarly adapted, both because it can be used by the proprietor without the intervention of a labourer, and also because of its fitness for places where there is only a small piece of grass lawn.
It is of American origin, and quite original in character, differing from all other lawn-mowers. "It is a very simple machine to look at, and a very little affair altogether, yet it is so constructed that it will cut grass in almost any condition, and of any height." It is pushed along by the operator, not drawn, as in the case of other machines. When the details of the machine are examined, its difference from all others is at once perceived, for there are no guiding rollers; instead thereof there is a flat iron sole on either side, which slides along on the grass. The cut of the mower, which is about 14 inches in width, consists of a knife made in the form of an Archimedean screw, which revolves with great rapidity, and does its work well. Unlike other mowing-machines, it does not collect the cut grass, but simply scatters the blades evenly about the sward. Supposing the grass be cut at short intervals, this is of small moment, as the cut grass would soon wither; at any rate, the process of sweeping the grass would occasion but little labour.
The cutter-bar can be altered as desired by means of a small screw-nut, which raises or lowers the sole as required. "In this way it can be set to cut the grass close to the ground, or an inch or more above it, as may be wished, which is an important feature, as by going over the ground three or four times a very heavy sward of gras3 may be inch by inch reduced. The height of the cutter may also be regulated somewhat at will by the operator's raising or lowering the handle of the machine; and thus it is enabled to cut readily up-hill and down-hill, and over uneven ground." Another advantage is, that it will cut the grass as readily in a wet as in a dry state, so that whenever it is convenient the machine can be brought into operation.

 
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