ANEMOMETRVM 



SVMMAM 



CELERITATVM CVIVSVIS VENTI 



ET SIMVL 



VARIATIONES DIRECTIONVM ILLIVS 



INDICANS. 



AVCTOR.E 



Mhhacle LomonofoaK 



CONSTRVCTIO 

 I. 



T»b- IV- /^onficiatur roti alatii A , ciiius fingiibc alac <r, 

 V^ numcro 16 , fint f;igincac 24. poUiccs longac , 2 



6g. u 



latae , crallkie vcro lincam vnicam haud fupcrantcs , at- 

 (jg. 2. que axi b infixac ita , vt fitu fuo ad axcm cojuicr- 

 gentc cfTiciant angulos 22 ^ gradmim. Maioris vcro firmi- 

 tatis gratia conftringantur fUo fcrrco duplicato in c ct 5 

 pcr iptis traicdo. 



II. 



Axis If pcr foi-amina in fummo mnrginc capdihic 

 ligncac BCDE , cui dimidium didlac rotac includitur , 

 traicdus , cumquc rota motus, dcntc d rotnm aliam F duos 

 pcdcs in diamctro habcntcm ct 800 dcntibus inflru(ftam mo- 

 vcat , quac tympano h axi fuo affixo circumagat rotam tcr- 

 tiam M , dimidii diamctri ct dcntibus 400 pracditam , cum 

 axc p diamctri fcmijKdaljs , lougitudinc vcro ' lcu ; pollicis 

 adacquaiuc. 



III. 



