15° 



POPULAR SCIENCE MONTHLY 



The wonderful lightness of this model will be better understood 

 when we realize that it carries twenty-five square feet of supporting 

 or horizontal wing surface to one pound of weight, while a wild duck 



Fig. 'Jl. Victor I. 



has only one half of one square foot of wing surface to one pound of 

 weight. The model almost rivals a mosquito in lightness — one pound 

 of mosquitoes represents an area of wing surface of forty-nine square 

 feet. 



Fic;. '22. End View of one of the Cells of Victor I. 



Dr. Bell is now making a wind boat on this model, and it would not 

 be surprising if this new wind boat should eclipse even the redoubtable 

 Mabel II. 



