effectively encouraged (<> a successful conclusion, 

 l.ii ii be so now for you through the following 10 

 i h tpters! 



\n, ■! i ! .. i i athei hopeful assurani eSj Father 

 Borghesi proceeded to provide a d< I ription 



nl tin- (Kuk di.il .iiul functions in the 10 short chapters 

 which he had promised, under .1 sepai 

 entitled "Synopsis Totius Opens Mechanici," which 

 I. translated in its entirety- in the appendix. 



As Father Borghesi prepared his little volume about 

 his first clock, and described its unusual featun 

 outlined its functions, which were primarily to place 

 iii evidence the celestial constellations, ii occurred 

 to him thai it would now be easier after theexperii n< 1 



he had a( quired with his first tlliiepiei e. tO construe t 



another clock, which would present the motions of 



the two astroi tical systems, the Ptolemaii and the 



nican. In this first hook, he promised the 

 readei that he would undertake the second pri 

 It is fortunate that Father Borghesi undertook this 

 project for the second clock is the only example ol 

 his work that is known to exist today. Extensive 

 research has not shown what happened to the first 



clock, although several sources State lli.it both time- 

 pieces weir piesented to Empress Maria Theresa 

 sometime between 1 764 and 1780. 



Second Borghesi Clock 



lather Borghesi lost no time in initiating the project 



of the second clock. The first and most important 

 step was to inform Bertolla and enlist his assistance. 

 Bertolla was adamant: he had had enouuh of ((im- 

 plicated astri.nomie.il movements. He was delighted 

 by the prospect of returning to his former simple 

 life, producing simple, domestic, elementary move- 

 ments for his country clients. lather Borghesi 

 begged .m>\ cajoled. The second clock would be a 

 much simpler one to construct, he persisted. After 

 all, they had gained invaluable experience from the 

 production of the first clock, furthermore, he had 



already completed its design. 



Bertolla apparently waivered in his resolve and, 

 unwillingly and against his better judgment, he 



allowed the priest's inducements to prevail. Once 

 again, the two friends yielded their leisure hours to 

 a study of the priest's books and drawings as Fathei 

 Borghesi enthusiastically elaborated his design for the 



timepiece, and Bertolla attempted to tnm 

 astronomical indications into terms of wheel counts. 



e 8 I in I- 1 irghi si clock in the Museum of h 

 and Technology, constructed in 1764 by Bartolomco 



\ io Bo tolla ol Moo nigi 1 >li Rumo fn im the - 



of Father I ghesi of Rumo and Mechel. 



l'Al'l R o: Mil BORt.IIISI \SI Ri i\i 1MI1 \l ( I ( » K 



41 



