Check out this article reproducing a Bell report on the XP-77 wooden lightweight fighter project and a proposed successor at
RetroMechanix.com:
The report provides an excellent history of this unusual fighter prototype up to mid-1944, one of the best summaries I've come across. The end of the document also features a proposal for an improved all-metal version with a turbosupercharger and a bubble canopy, as shown immediately above. The accompanying gallery features 37 images, including several high resolution photos and drawings.
-Jared