Cambridge
Ther. [Thermometer] MON. MAR. 21, 1910 [Monday, March 21, 1910] Wea.[Weather]
Fine
  Clear and calm. Rather warm.
  Spent day in Museum. In
forenoon wrote letters and dealt with
2 Short-billed Marsh Wrens sent me
by Wayne for determination. One is
grayish, the other rufescent. The latter
is our New England bird. I have the
other from Wisconsin but also the
rufescent one. The matter is a puzzle 
at present. The two birds are very different 
looking. I wrote Wayne about them.
  In afternoon prepared myself to
introduce the Thayers' principles of concealing
coloration to Nuttall Club this evening.
It was discussed for 2½ hours. 27 members
& 3 invited guests present among these
latter Dr. Smith & Mr. Cabot. It was I
think the most interesting & inspiring
meeting we have had for many a year.
Purdie [Henry A. Purdie] attended it & dined with us.
A Song Sparrow in the Garden, also
a Flicker shouting.
Cambridge
Ther. [Thermometer] TUES. MAR. 22, 1910 [Tuesday,  March 22, 1910] Wea.[Weather]
Fine.
Clear & calm. Seasonally warm.
  Spent day in Museum. In
forenoon Gilbert [Robert Alexander Gilbert] & I put numbers on
all the big cans. In afternoon I
wrote letters & revised the reply to
Dwight which Gilbert has just
type-written very neatly and
accurately without re-copying a single
sheet. He has taught himself to use
the type - writer [typewriter], working at it all winter 
in his lunch hour. This paper of 15
pp. [pages] is the first thing he has done for me.
  Pierce & his man sprayed the fruit
trees in the Garden yesterday with
"Niagara" lime sulphur 1-8 solution.
It got on most of the hemlocks &
rhododendrons & I fear will ruin them.
2 Juncos in Garden; also Jays heard
but not seen.