TUPMAN'S OBSERVATIONS OF INGKESS. 



45 



MEASURES of the DISTANCE between the near LIMBS of the SUN and PLANET 



after INTERNAL CONTACT. 



Bad. 



MEASURES of the DIAMETER of VENUS. 



Micrometer Readings when the Images were in tangential contact. 



r r 



i6 - gi5 3 - ioo 



16-990 3-o55 



16-944 2-990 



16-977 2-910 



i6'gi5 3-ooc 



16-975 2-945 



1 6'g i o 2 -goo eye fatigued 



i6 - g3o 2'g85 



1 6-900 3'ooo 



16-900 2-848 bad 



2-840 bad 



3-127 



Between every two micrometer-measures the screw was rotated in opposite 

 directions alternately, to eliminate any possible error that might arise from 

 turning it always in the same direction. It is unfortunately not recorded in 

 what direction these last measures of diameter were taken. '"I may or may not 



G 2 



