Field and Laboratory
Volume 18, Number 4 (1950)
Articles
Origin Of The Clastic Dikes In The Rockwall Area, Texas
John Napier Monroe
Osteology Of The Skull Of Phrynosoma cornutum (Harlan)
Arthur J. Detrie
Notes on Texas Compositae - VI
Lloyd H. Shinners
The True Clovers (Trifolium) Of Texas
Joe F. Hennen
The Trichoptera Or Caddis Flies Of Dallas County, Texas
Clarence C. Hall Jr.
Notes
Notes On Megathymus, With Description Of A New Species (Lepidoptera, Rhopalocera, Megathymidae)
H. A. Freeman
Kallstroemia perennans Turner, comb. nov.
B. L. Turner
