-»B^.^ ) 370 C ^f^*- 



DETERMINATIO LATITVDINIS 



ET 



LONGITVDINIS VRBIS OREL, 



DEDVCTA EX OBSERVATIONIBVS 



ASTRONOMICIS ANNO n^i 



HABITIS. 



A u ^ o r c 

 FETRO INQCnODZOlK 



Prflcicndae Gcoe:rnptiiac Rurncac , oiMC noflrls dlcbus no- 

 van. induit tacicm, annuii A VG VS IISSIMA IMPERA- 

 TH1\, vt mittcrcntur obfcruatorcs ad detcrminandum fifuin 

 lotorjm magni ElVS impcrii cclebriorum. Intcr liacc 

 prima ftatio vrbis Orcl, quac i.icct ad fluuiiim Ocam ct 

 diOat a fonte ipfius 73 wcrdis, mihi crat conflituta. In- 

 ftrumcnta, quibus ab illuftriliima Acadcmia kientiaruni 

 ad ()bfi;ruarioncs has facicndas inllrutftus, fucrc fctjucntia 

 c£icgiac bumtaiis: 



[. Qu.- 



