ANNALS CF IIORSEM ANSIII P. IJ 



for ever put an end to the dangerous vice of 

 running away. 



By the ufe of the principles of ailronomy, 

 I have invented a mode of taking the exad 

 f.ltitudc of any horL% U two obfervations ; and 

 rm at prcfent at work, on a Hippodromome- 

 t:r*, to afccrtain the velocity of his courfe 

 in the vcryadt of riding. 



But while I boaft, and, I trufb, with rea- 

 fon, of tliefc difcovcries, I mufh candidly con- 

 fefs that a rigorous attention to theory has 

 fometimes betrayed me into pravftical error.^. 

 When my horfe has been pulling carneflly 

 one way, my owji intention being at the fame 

 time to go another, I linve pulled ftrongly at 

 light i^^ngles to the line of his courfe^ exped;ing, 

 from tlie laws of compoimd motion, that we 

 fhould then proceed, neither i-n the line of 

 his effort nor of my pull, but in an inter- 

 mediate one, which would be the diagonal 

 of the parallelo2:ram, of v/hich our forces 

 were as ' the fides ; but have always found Jiat 



D this 



■* Fronr: IJip^.s a horfe, rlromos a courfe, and mtlre'm to meaf u e. 



