Computus ohservationum ihermomelricarum. 365 



{m)±On = \[{ia.)-\-{ 9fl.) + ( 5p.], 

 = j[(2a.) + (I0a.) + ( 6/;)], 



= I [(4a.) + (12 merid. + (8p.^], 



= i[(5«-) + ( !/'•) + ( 9/7.)], 

 = i[(6aO + (2/;.) + (10/,.)], 

 = i[(7«.) + (3p.) + (IJp.)],*). .. «) 

 = i [(8«-) + ( 4/7.) + (12 nocte;]. 

 Coiuniodiiaii igiiur vltae uosirae quoiidianae servieniiLus nobîs, ne 

 uoclurni temporis quielem turLari sinamus, formulas eligere vel 

 jjcijuliimam vel auiepenultimam ubique locomm poiissimuin con- 

 veuil. 



Si quatuor observalioDibus sequidistantibus ad inveniendum 

 medium calorem utimur, adeo jam decrevisse docet experienlia 

 aberrailooem a vero, ut saepe ne ceolesimam quidem gradus partem 

 superet, quare talis valor uii absolute verus ornai jam jure potest 

 ubique adhiberl. Habemus igitur 



{m) = \[_{U.)-\-{ 7a.) + (lp.) + (7p.)], 

 = K(2«-) + (8a.) + (2p.) + (8^.)], 

 = i[(3«.) + ( 9«.) + (3/7.) + ( 9p.)], 

 = 1 [(4a.) + (10a.) + {^p) + (10/7.)] **) 



= 1 [(5«-) + (II«-) + (5/7.) + (1 !/>■)], 



= \ [(6a) + (12 merid.) + (6/7.) + (12 nocle}], 



*J ConJerantur ea, quae supra pag. 244 attulimus. 

 ") Conlr. Käintz Meteorol. Vol. L p. 105. 



