Cambridge.
Ther [Thermometer] WED. FEB. 5. 1913 [Wednesday, February 5, 1913] Wea. [Weather]
Fine.
Clear & rather cold with
blustering N.W. [northwest] wind. Ground
snow covered to depth of 4 inches.
Good sleighing in city streets.
  At 4.45 P.M. I was sitting
at my desk in Museum when from
just outside my window there came
to my ears, very clearly & distinctly, a
succession of notes uttered rapidly,
all soft & pleasing, some very liquid &
musical. They were very like those
sometimes uttered by Chickadees yet
different. Looking out I saw, as 
expected, the Hudsonian Tit at the
suet. A half minute later he flew off
a few feet & repeated the pleasing notes.
Having pencil & paper to hand I wrote them
three Tit-li-hee, lee & hil-lee, til-li-hee, lee-hie-lee.
They did not remind me in the least of
the song of a Purple Finch. I think they
may have the same [?word missing] as those heard at Bethel.
  Heard a Crow caw in early morning.
  Spent day in Museum trying to write.
No success in forenoon. Wrote 2 pp. [2 pages] on
Ring-neck in P.M. after lighting my pipe
for first time since Monday afternoon.
Cambridge.
Ther [Thermometer] THURS. FEB. 6, 1913 [Thursday, February 6, 1913] Wea. [Weather]
16º   [16 degrees]    Fine
Clear & cold with high Westerly wind.
  Saw Hudsonian Tit come four times to
suet - at 11.45 A.M. & 3.45, 4 & 4.20 P.M.
It remained there from 20 to 60 seconds
on each occasion. Once it uttered a soft
low chirrup ti-i-i-i-i exceeding like
that of a drowsy Field Cricket. It
also gave the ordinary tse-tse-dèe
From my point of view slightly above
it looked while at the suet &
turning its brown back towards me,
more like a Sparrow than a Titmouse
& most like a young [female] Junco.
A Black-cap chickadee [Black-capped chickadee] also visited
the suet twice & I heard the White-throat [White-throated Sparrow].
  Spent day in Museum working on
Umbagog task. Had to give most of my
time to revising M.S. [manuscript] but wrote
one fresh page on Greater Yellowlegs.
C. [Caroline] type wrote from 9 to 12.15.
Miss Piper brought back some pp. [pages] she
had done. Miss Bishop dined with
us at 6.30 & went to Sym Con [Symphony Concert] with C.