Perhaps the little aeroplane does not go very far, it looks like a
failure. Do you look on and pass on? If the model goes at all by its
own power, that boy has made a something that has overcome the force of
gravity to the extent of traveling transversely to its downward pull.
Recognize it, and encourage the boy. There is a difference between
flinging one so that it will travel for a short distance, and releasing
one that travels by its own power. The former may be a deception. Give
credit where credit is due.
The balloons have very little lifting power, but the force of gravity
has been overcome, two gases of unequal density have been placed in
juxtaposition and the lighter one goes up. So we might go on with each
of the subjects attempted in this book. There has been great demand
for the briefer treatise, and I hope this little book may have met the
expectancy of its readers more than half way.
Remember it is not just the pretty kite soaring high in the sky;
remember there is a BOY at the other end of the kite line. Boost for
him.
[Illustration]
CHAPTER XX.
BIBLIOGRAPHY OF KITES.
Prepared by M. Charlotte Casey, Los Angeles Public School Library.
Adams, J. H. _How to make kites and flying gigs._ Woman’s
H. C. 31:44
Baden-Powell, B. F. S. _Kites, their theory and practice._
J. Soc. Arts 46:359
Baden-Powell, B. F. S. _Man lifting kites._ National 26:494
Baden-Powell, B. F. S. _War-kites._ McClure 12:543
Baldwin, T. W. _Outlook tower of Beinn Bhreagle._ (Tetrahedral
principle.) Sci. Am. 97:242
Beard, D. C. _How to make tailless kites._ Outing 48:254
Beard, D. C. _Two tailless kites and how to make them._
Outing 48:254-6
Beasley, W. L. _Picturesque Chinese kites._ Sci. Am. 89:408
Bell, A. G. _Frost King, a tetrahedral kite_; ill. Sci.
Am. S. 63:26264-6
Bell, A. G. _Hargrave box-kites and tetrahedral kites
compared_; ill. S. Am. 63:26269-74
Bell, H. H. _Prof. Bell on construction of kites._ Science,
n. s. 18:204
Bell. _Tetrahedral kites in wireless telegraphy_; ill.
Sci. Am. 94:324
Bell, A. G. _Tetrahedral principle in kite structure._
Sci. Am. S. 55:22947-50
Bell, A. G. _Tetrahedral principles in kite structure._
Nat. Geog. Mag. 14:219
Bell, A. G. _Bell’s kite experiences._ Sci. Am. 88:334
Briggs, M. N. _Tailless kites, how made._ Outl. 58:1026