PREFACE.
22
in  the  Horizon  furnish  many  curious
Observations  upon  the  Subject  of
Refraction.
WE  had  likewise  the  Planet  Venus -
  for  about  two  Months  constantly
above  the  Horizon,  and  could  take
her  Meridian  Altitudes  both  to  the
South  and  North.
AND  from  all  these  Observations ¬
  made  with  the  greatest  Care,  we
found  that  the  Refraction  at  Torneâ
differed  not  from  that  in  France:
any  difference  we  found  was  no
more  than  what  might  arise  from  the
Observations  themselves,  or  from  Accidents ¬
  wherewith  the  Refractions
upon  the  Horizon  may  be  affected. ¬

IF