ACKNOWLEDGMENT OF FIGURES.
Reading edition
1, 7, 8, 9, 10, 16. Meteorological Instruments. H. J. Green, 1191 Bedford Avenue, Brooklyn, N. Y.
2, 4. Instrument Shelter and Rain Gauge. Instructions for Voluntary Observers. United States Weather Bureau.
5. Mercurial Barometer. L. E. Knott Apparatus Co., 14 Ashburton Place, Boston, Mass.
12, 15, 53. Thermograph and Barograph Curves, and Cyclonic Composite. Davis, Elementary Meteorology.
17. Nephoscope. Annals Harvard College Observatory, Vol. XX, Part I.
48. North Atlantic Cyclone. Pilot Chart of the North Atlantic Ocean. United States Hydrographic Office.
51. Wind Rose. Quarterly Journal Royal Meteorological Society, Vol. XXIV, No. 108.