Fortunately one of the members, Truck Milnor, insisted that the
measurements should be remade by means of a rule graduated by the
micrometrical machine of M. Perreaux, which can divide a millimeter
into fifteen-hundredths of a millimeter with a diamond splinter, was
brought to bear on the lines; and on reading the divisions through a
microscope the following were the results: Uncle Prudent had
approached the center within less than six fifteenth-hundredths of a
millimeter. Phil Evans was within nine fifteen-hundredths.

And that is why Phil Evans was only secretary of the Weldon
Institute, whereas Uncle Prudent was president. A difference of three
fifteen-hundredths of a millimeter! And on account of it Phil Evans
vowed against Uncle Prudent one of those hatreds which are none the
less fierce for being latent.





Chapter III

A VISITOR IS ANNOUNCED




The many experiments made during this last quarter of the nineteenth
century have given considerable impetus to the question of guidable
balloons. The cars furnished with propellers attached in 1852 to the