http://books.google.com/books?id=9ZDpdupFBoQC&pg
This is part of the Google books project to scan everything in print. This is a classic home construction book initially done by the Dept. of Agriculture and long in the public domain. I have a Dover reprint from the 1970's.
The book has good solid information on standard traditional wood frame construction with lots of helpful hand drafted diagrams. This book can be searched.
(https://i56.photobucket.com/albums/g166/jraabe/anderson.jpg)
Diagram of the edge thickened slab floor.