Having changed our minds again about how we're going to put in the subfloor, Melissa has gone around and put the necessary 1 inch insulation around the perimeter of the house, and then we've filled up the interior with another inch of gravel. We were going to do 4 inches of subfloor on the kitchen and bathroom sections, but now we realize that we can get awary with 3.
After I dumped and spread the extra gravel, Melissa again went around and leveled and tamped it down:
In these pictures you can also see how she's done a great job of piecing together the insulation and having it fit nicely around the curves of the walls.
The above is the bathroom section, with the foundation for the wall between the shower and toilet showing in the foreground.