508 THE CENTURY, 



form of folio book backs, with the two back ends of the 

 poles attached by strings to the feet ; affording alto 

 gether a very feeble attempt to obtain the desired 

 object. 



The privilege of flight by any mechanical means is 

 denied to man; his figure, weight, muscular constitution, 

 all operate against his imitating the bird, which, ad 

 mirably proportioned, light in frame, yet concentrating 

 powerful muscular strength in its wings, well adapt it 

 for enduring prolonged aerial flight, although the me 

 dium in which it floats is eight-hundred times lighter 

 than water. 



If flight in the air is ever to be mechanically 

 attained, it will be by a machine, worked independently 

 of man s power, and which possibly will neither be so 

 safe nor so manageable as the common balloon, with 

 all its hazards and wayward guideless journeyings. 



7 8. 



A Watch to go conftantly, and 

 yet needs no other winding from 

 the firft fetting on the Cord or 

 Chain, unlefs it be broken, requiring 

 no other care from one then to be 

 now and then confulted with con 

 cerning the hour of the day or 

 night ; and if it be laid by a week 

 together, it will not erre much, but 

 the oftener looked upon, the more 

 exat it flieweth the time of the day 

 or night. 



\_A continually -going Watch. ~] A watch having the 

 dial enclosed under a metal case, as in hunting watches, 



