Gravar-mail: OBSERVATIONS ON TETANY IN DOGS : RELATION OF THE PARATHYROIDS TO THE THYROID; RELATION OF TETANY TO AGE, AMOUNT OF PARATHYROID TISSUE REMOVED, ACCESSORY PARATHYROIDS, PREGNANCY, LACTATION, RICKETS, SULPHUR, AND DIET; RELATION OF PARATHYROIDS TO SUGAR TOLERANCE; EFFECT OF CALCIUM SALTS.