. . "Aeronautics." . . "Winds." . . "Internal work of the wind" . "The internal work of the wind"@en . "The internal work of the wind" . . "The Internal work of the wind, by S. P. Langley" . . . . . . . . "Early works"@en . . . . . . . . . . . . . . . . . . "The Internal work of the wind"@en . "The Internal work of the wind" . . . . . . . . . . "The internal Work of the Wind" . . "Internal work of wind"@en . . "The internal Work of the Wind. [With plates.]"@en . .