472 



ANIMAL MECHANICS, 



At 

 I 2(0 



(142) 



The values of n in the experiments made on Dr. Macal- 

 ister were calculated from (142), using the constants, 



A = 64.5. 



= 0.022I. 



7T 



If w, t be made the ordinate and abscissa of a curve, 

 equation (142) will represent one of the central cubics, 

 having its centre at the origin, and the axis of x asymptotic 

 at positive and negative infinity. The ordinate will have a 

 maximum value for co-ordinates. 



2w 

 Att 



4<JL> 



= + 1.6075 sees. 



±51.84. 



The curve (142), on the side of positive axes is repre- 

 sented in Fig. no, and the actual observations are marked 

 by small circles. 



Fig. ixo. 



