17* ->^.||f?<- o ">^6^ 



^jrr^ 



VSVS LEGIS DICCREME.VTI CALO- 



RIS AD DMFINIENDAM MKDIAM CFRTO 



TKMPORIS INTFRVALLO TF..MPHK1KM 



AF.RIS OSTFNSVS I"r INSTRVMFN- 



Tv.M aif:tf:oroi,ogicv.m novvm 



MFDIAE TEMFHRIF.I AF.RIS IN- 

 VENIENDAR INSFRVIFNS. 



AVCTOdr **" 



G. /r. Rii:hmann. 



Iri iiiq-rritimc in lc^cm dccrcmciiti ct inci-cmciiti 

 caloris fliiidi in ccrt:i ct conlhnti tcmpcric acris Com* 

 mcnt. Noii. Tomo 1'"° inlcrta liib fincm liibiunxi problc- 

 vwx leiiucns : Tcmpcriem acris inuenire eam , quae , fi con. 

 Jians e(jit , pcr totum deim ir/ etiam multorum (ticrum in^ 

 teruattum , quin tjtum anmim , eundcm ejjcctum produccrct 

 in refri^erandis et catefacicndis per idcm tcmpus corpori- 

 bus ac omnes gradus diucrfi catoris ftbi pcr totum dicni 

 vel longius interuattum c. g. totum annum Juccedentcs- 



Rcfohitioncm iplam problcinatis dilUili doiicc -.ippara- 

 tiim rci ncccfTariiim ritc inllrucrc j-Hiflcm. Cum in 

 proximc practcrlapfo qiudrimcllri milii propofucrim ia 

 noclurnam ct diuiii.im cnaponuioncm inciuircrc ct hunc iii 

 lincm mcn'c Iiilii ct Augiilli multa cxpcrimcnta inllituc- 

 rim , inprimis in euapjiationcm cx (iipcrfkic frigidia i* 

 qnae in acrcm calidiorcm incjuircns, ct c\ omnibiis ob- 

 fcruationibus poptcr inconftantiam ■acris nihil dctinirc po« 

 tncnm , cluccbat nccciritas rcrolutionis problcmati^ allati. 



Nci]iic cnim pcr i<itcgram nodcm oblcruationcs con- 

 tiniurc potui , ^t compaiationcm intcr cu.iporationcm noc- 



luniam 



