Download G.R.G. Worcester's "Junks and Sampans of the Yangtze, Vol. 1"

A skiff propelled by a yulow, or stern sculling oar. From Worcester, G.R.G., The Junks and Sampans of the Yangtze, Vol.1 (1947).

Now available for free download is G.R.G.Worcester's monumental study The Junks and Sampans of the Yangtze (1947), Volume 1: Introduction: and Craft of the Estuary and Shanghai Area. It contains lengthy descriptions of an amazing number of boat and ship types and dozens of plates of very clean construction plans similar to the one above, although most are of larger vessels. The Introduction details propulsion methods, rigging arrangements (like the image below), rudder configurations, anchors and other fittings.  

Details of spritsail rigging. From Worcester, G.R.G., The Junks and Sampans of the Yangtze, Vol.1 (1947).