Journal of the Mitchell Society. 
CONTENTS. 
VOL. XXII. 
1906. 
“Physiological Economy in Nutrition .” — Isaac H. Manning 1 
Corundum and the Peridotites of Western North Carolina. A 
Review — J. H Pratt and J. V. Lewis 8 
Notes on the Geology of Currituck Banks . — Collier Cobb 17 
The New Orleans Meeting of the American Association for the 
Advancement of Science and the American Chemical Society. 
—Chas. U. Herty 20 
The Cement Gold Ores of Deadwood, Black Hills, South Dakota. — 
J. H. Pratt 23 
Chemical Research in America . — Francis P. Venable 29 
The Coral Siderastrea Radians and its Postlarval Development. — H. 
V. Wilson 41 
The Source of the Sun’s Heat . — John F. Lanneau 45 
Proceedings of the Fifth Annual Meeting of the North Carolina 
Academy of Science Held at Raleigh, N. 0. , May 18 and 19, 
1906 57 
The Building and Ornamental Stones of North Carolina. A. 
Review . — Joseph Hyde Pratt, State Geologist 63 
Where the Wind Does the Work . — Collier Cobb 80 
Chloral— a — Naphthylamine and Chloral— /J— Naphthylamine.— 
Alvin S. Wheeler and V. C. Daniels 90 
Proceedings of the Elisha Mitchell Scientific Society 95 
Molecular Attraction. VI. — J. K. '.'ills 98 
