3.30 P. M.—For some little while past there had been distinct evidences of electrical disturbances. Atmospherics became very bad and a severe thunder-storm was seen over the Canadian coast, moving south down the coast. Scott turned east off his course to dodge the storm, putting on all engines. In this, fortunately for us, he was successful, and we passed through the outer edge of it. We had a very bad time, indeed, and it is quite the worst experience from a weather point of view that any of us have yet experienced in the air. WONDERFUL CLOUDS PHOTOGRAPHED During the storm some wonderful specimens of cumulo-mammatus were seen and photographed. These clouds always indicate a very highly perturbed state of atmosphere and look rather like a bunch of grapes. The clouds drooped into small festoons. 7.30 P. M.—We are now in clear weather again and have left Nova Scotia well behind us and are heading straight for New York. Particularly fine electrical-disturbance type of sunset. 9.30 P. M.—Another thunder-storm. Again we have to change our course to avoid it, and as every gallon of petrol is worth its weight in gold, it almost breaks our hearts to have to lengthen the distance to get clear of these storms. July 6, Sunday, 4 A. M.—Sighted American soil at Chatham. 4.25 A. M.—South end of Mahoney Island. Scott is wondering whether petrol will allow him to go to New York or whether it would not be more prudent to land at Montauk. 5.30 A. M.—Passing over Martha’s Vineyard—a lovely island and beautifully wooded. Scott decided he could just get through to our landing-field at Hazelhurst Field, but that there would not be enough petrol to fly over New York. Very sad, but no alternative. We will fly over New York on start of our return journey on Tuesday night, weather and circumstances permitting. Landed 1.54 P. M. Greenwich mean time, or 9.54 A. M. U. S. A. summer time, at Hazelhurst Field, Long Island. Total time on entire voyage—108 hours, 12 minutes. APPENDIX I UNITED STATES AIRCRAFT AND ENGINE PRODUCTION FOR THE UNITED STATES AIR SERVICE The best rapid survey of the organization of the United States Air Service and the part which it played in the Great War, as well as statistics touching upon the materials used in aircraft production, the number of planes and engines made, and also the number of machines used for training purposes, and actually put into service at the front, is contained in the following extracts from the reports of Secretary Baker, Justice Charles E. Hughes, General Pershing, and Major-General William L. Kenly. SECRETARY BAKER’S AIR SERVICE REPORT In his annual report for 1918, released December 5, the Secretary of War reported on the Air Service as follows: AIR SERVICE ORGANIZATION