e steam is
utilized without occasioning violent shocks in the parts which
transmit motion. Finally, the plainness of the whole apparatus is
perfectly in accordance with the uses for which it was devised.

[Illustration: FARCOT'S IMPROVED WOOLF COMPOUND ENGINE.]

_Details of Construction._--Figs. 1 and 2 represent the motor in
vertical section made in the direction of two planes at right angles.
Figs. 3 and 4 are horizontal sections made respectively in the
direction of the lines 1-2 and 3-4.

The frame, which is of cast iron and entirely hollow, consists of two
uprights, B, connected at their upper part by a sort of cap, B