CENTENARY CELEBRATIONS OF ENTOMOLOGICAL SOCIETY. 103
The fact that both were seen on the wing at once must be
sufficiently unusual in Essex nowadays to be worth recording.
Shag (Phalacrocorax a. aristotelis).
There were four immatures on 4 January, 1933, swimming
together, near the Nass Beacon, West Mersea.
Common Eider (Somateria m. mollissima).
An immature male in first winter plumage, which had been
shot off West Mersea, was sent to me on 10 January, 1933.
Long-tailed Duck (Clangula Hyemalis).
On 1 January, 1933, I saw a male in first winter plumage
(in the flesh), which had been sent to Mr. John Pettitt, Great
Horkesley, for identification. It had been obtained together
with three others, a few days previously off Brightlingsea.
Kittiwake Gull (Rissa t. tridactyla).
An immature in company with Common Gulls, off the Ships
anchored in the Blackwater Estuary between East Mersea and
Sales Point, on 14 February, 1933.
Razorbill (Alca torda).
One, on 14 February, 1933, in the same locality as the
Kittiwake: not "oiled."
CENTENARY CELEBRATIONS OF THE
ENTOMOLOGICAL SOCIETY OF LONDON.
The Entomological Society of London celebrated the
Centenary of its Foundation on 3, 4 and 5 May, 1933, with
a very interesting programme. On the first day there was a
General Meeting for the reception of about 200 Delegates and
presentation of addresses in the rooms of the Royal Geographical
Society, followed by an evening Conversazione at the Entomo-
logical Society, with a number of exhibits, including a series of
photographs of the metamorphoses of insects by our member,
Mr. H. Main. On the next day a Reception of Delegates by the
Trustees was held at the Natural History Museum, followed by
an evening visit to the Zoo, with a supper in the Fellows' Dining