310 



THE SAYRE OBSERVATORY. 



The corrected differences of consecutive groups are now as follows 



I- II — .123 



II- III + .278 



III- IV —.124 



IV- V —.009 

 V- VI + .109 



VI- VTI — .178 



VII-VHI — .180 



VIII- IX + .140 



IX- X + .118 



X- I —.032 



2 — .001 



Therefore 



II 



— .123 



III 



+ .155 



IV 



| .081 



V 



+ .022 



VI 



| .131 



VII 



— .047 



VIII 



— .227 



IX 



— .087 



X 



+ .031 



Add to each quantity .0114 in order to make the sura of the corrections zero, we 

 find the following series of values, which are applied to the latitudes derived from the 

 different groups to reduce all to a homogeneous system. 



I 



+ .01 



11 



— .11 



III 



I .17 



IV 



|- .04 



V 



+ ,03 



VI 



1- .14 



VII 



— .04 



VITI 



— .21 



IX 



— .07 



X 



| .04 



This system of corrections, together with those given on page 310, being applied to 

 the individual determinations of latitude, we obtain the results given on the folding 

 sheet, where will he found in detail the definitive latitude as given by each observation of 

 the entire series. 



