Corrections

October, page 35—Last line refering to “Range” of the Lyman‐alpha humiditiometer should read “$−40$ to $+20$ degrees C dewpoint.”

Page 37—Photograph credit should be James R. Sartor; reference 17 should read Charles Abbott and Ted Cannon; 5th line from bottom of last column should have $−6.2×10 −5 ,$ not $−62×10 −5 .$

Page 38—The last two “words” of the legend for figure 6 should be 10.0 microns.

Page 55, column 1—Ray A. Burnstein was promoted to professor of physics at Illinois Institute of Technology, not associate professor.

November, page 5—Cover note failed to mention that the molecular models pictured on front cover were supplied courtesy of Klinger Scientific Apparatus Corp.

November, page 15, line 21 of H. Bacry's letter—Phrase “its speed is finite in both positive and negative directions” should read “its speed is infinite…”

Page 35, figure a—The “shear ∥” curve should remain the outer curve in both upper and lower sections; the “shear ⊥” curve should remain the inner curve in both upper and lower sections. The two shear curves only touch on the z axis and do not intersect.

Page 36, figure 3b—The vertical arrow on the left should be labelled $x 2 ;$ figure 5—The first three and the last three side lobes are missing “the last four lines of text on this page describe the ideal correlation signal correctly).