50 ON A FORM OF FLYING-MACHINE.. 
From a consideration of the eo it may be theorized 
that the same horizontal flight is produc 
Ist. If the area is reduced the Sowa can remain the same, 
but the weight must be reduced 
2nd. If the area is reduced the weight can remain the same, 
ut the power must be increased. 
3rd. If " weight is reduced the area can remain the same,. 
but the power must be reduced. 
= If rs power is reduced the weight can remain the same, 
but the area must be increased. 
[Seven diagrams. ] 
