500 APPENDIX 
direct the cable. It is sometimes used instead of a bull block in yarding 
logs. (P. C. F.) 
Syn.: blue jay, chickadee (N. F.), sandman. 
Road scale. The scale of logs which is taken on the landing. (P. C. F.) 
Rocker, n. The top bunk on the forward pair of runners of a logging sled. 
It is fastened to the lower bunk by a kingpin. (N. W.) 
Rodeur. See Camp inspector. 
Roll, n. The crossbar of a logging sled into which the tongue is set. (N. W., 
L. S.) 
Syn.: roUer. 
Roll a log, to. To so attach a choker to a log that the latter roUs sidewise 
when power is appUed to a cable. (P. C. F.) 
Roll bark. Hemlock tanbark that has not been carefully dried and hence is 
of inferior quahty. (N. F.) 
Roll-down man. See Tailer-in. 
Roller, n. See Roll; Road roUer. 
Rolling chain. See Loading chain. 
Rolling dam. A dam for raising the water in a shallow stream. It has no 
sluiceways, but a smooth top of timber over which, under a sufficient head 
of water, logs may slide or roll. (Gen.) 
Roll logs, to. To turn over the logs on a landing so that the bark marks can 
be inspected by the scaler. (E. C.) 
Roll the boom, to. To roll a boom of logs along the shore of a lake against 
which it is held by wind, by the use of a cable operated by a steamboat or 
kedge. The cable is attached to the outer side of the boom, hauled up, 
then attached again, thus propeUing the boom by revolving it against 
the shore when it would be impossible to tow it. (N. W., L. S.) 
Roll up. See Bank up. 
Rollway, n. See Landing. 
Rooster, n. See Gooseneck. 
Rosser, n. 1. One who barks and smooths the ride of a log in order that it 
may shde more easily. (N. F.) 
Syn.: log fixer, rosser (P. C. F.), scalper, shpper. (App.) 
2. One who peels pulpwood and logs. (N. W.) 
3. See Barker. 
Rossing-mill, n. A plant at which bark is removed from pulpwood by means 
of machinery. (N. W., E. C.) 
Rotten knot. A knot which is not as hard as the surrounding wood. (Gen.) 
Rough and tumble landing. See Landing. 
Round boom. A limber boom used to impound logs during towing. (L. S.) 
See Bag boom. 
Round knot. A knot that is oval or circular in form. (Gen.) 
Round timber. Timber which has not been bled for crude turpentine. (S. F.) 
Round turn. A space at the head of a logging-sled road, in which the sled 
may be turned round without unhitching the team. (N. F.) 
Rudder boom. See Fin boom. 
Run, n. A narrow trail, cleared of brush and stumps, down which logs are 
pulled by a power skidder. (S. F.) ' 
