Correction published Dec. 1943, no. 71, p. 8: the legends under the illustrations on pages 63 and 64 should have been as follows: Fig. 2a should read "Fig. 1a. Bronchogram revealing bronchiectasis of the left lower lobe." Fig. 2b should read: "Fig. 1b. Delineation of left lower lobe in the same case two months later, showing complete return to normal." Fig. 1b should read: "Fig. 2a. Original bronchogram demonstrating enlarged bronchi." Fig. 1a should read: "Fig. 2b. Appearance of bronchi one month later. Note that a few bronchi remain enlarged, but the others have resumed normal configurations." The authors' copy was correct.