books.google.com - A detailed manual on the building of a superior rowing and sailing dinghy. A modified version (carvel instead of lapstrake planking) of the famous Herreshoff Columbia model, this measures 12'8", makes an excellent project for the boatbuilder with intermediate skills....http://books.google.com/books/about/How_to_Build_the_Catspaw_Dinghy_A_Boat_f.html?id=4ulOqloDuVAC&utm_source=gb-gplus-shareHow to Build the Catspaw Dinghy: A Boat for Oar and Sail