a eae: eee Se Te ee 
Observations on the eclipse of the sun, June 16, 1806. 19 
daily retardation of 14 seconds, as that correction did 1 not exceed a sixth 
of a second. Ski 
_ On the day of the Soke the ra AIS was Paes fine, scarce- 
ly a cloud being visible in any part of the heavens. _I made prepara- 
tions for the observation in the garden adjoini ig the house, in which 
I reside, near the northern part of Summer street, Salem.» ‘Having 
been disappointed in procuring a telescope of a large magnifying pow- 
er, I was obliged to make use of that attached to my theodolite, which 
gave versie vision, though its magnifying power was small. 
An assistant seated near “me, who counted the seconds from the 
chyonometcr, ‘and thus — me to mark aie so enc A 
slcingtinkteteshbe atts tb ERE ere ang ‘Or oe adit had hata 
aff the ayaa had atisttg increased ; after which I examined the 
second and minute hands of the chronometer and took every precau- 
tion to prevent mistakes. Four or five minutes before the commence- 
ment of the eclipse I began to observe that part of the sun’s limb, 
where the first contact was expected to take place, and at 10h. 8’ 28” 
by the chronometer I observed the first impression on the limb. - In 
two seconds the indentation of the limb was quite perceptible. ‘As 
prediees advanced" there did not appear to be so great a diminution 
ght _ oo aaphaadee aeamale oo GP therstin-was 
nearly covered — rkness | fe 
covered. 5 Ss Na ok ale se ea ind usar 
itaneously, that it seemed as if there could not have been’ mis 
take Ob seS6d inthis phase. The whole of the moon was then seen 
nded by a luminous appearance of considerable extent, such as 
ally been taken notice of in total eclipses of the sun. This 
