36 Method of Reducing Observations of Temperature. 
. ne 
sin —— 
sin’ (na + En) 
te... + Qn 
nT 
— 
m 
Pe ae 
sin — sin — 
sin (« + 6) + a, op Sin (22 + ,) 
M M 
and Y=a, + a, 
. ar 
sin - 
sin (nw + €,) 
t+ se ©. +p 
M 
Comparing these with the expressions contained in the note, 
V1Z.— 
y=, + a, sin (w + ¢,) + a, sin (Qe + 6) +...+a8in (nat ey), 
pe + A, sin (@ + E,) + A, sin (2 + B,) +..-+ An 
sin (nw + Ez), 
we see that 
sin- sin 
M m e T s 
Aarne: —— ;:Msin—: m sin— 
ry . 
M m 
is 2r . Ue 
n— sin — 
M m° ee, .. Der 
Asia, , >: M sin — . m sm— 
Q¢ 2a 
M m 
nT nor 
sin ——. sin — 
M, m . ne . ne 
Big 2 Giasia : :: M sin —: msin — 
nor nar M m 
M m 
