Cambridge, Mass.
1910.
July 4
(No 3)
[July 4, 1910]

A plague of mosquitoes in Cambridge

  Cambridge swarms to an extent hitherto
unknown with ravenous mosquitoes. When I 
go into the Garden they rise in clouds from the
bushes bordering its walks. They are literally
as "bad" here as I have ever found them in
the Maine woods and worse than they ever
are at Concord. My neighbor Mr. Harris tells me
that the people living along Bay State Road in
Boston are complaining bitterly about them there.
He suggests that their unprecedented abundance
may be due to the fact that Charles River is
now a body of fresh water as far down as the dam
at Craigie Bridge. I saw Dragon Flies hovering over
it opposite the front of Sparks Stand for the
first time on July 2nd of this year.