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"The assay of the blood sample from the
patient which you sent us showed normal levels of
the organo-chlorine compounds Dieldrin and D.D.T.
For gamma-BHC the figure was a little higher than
a previous sample examination, but I really do
doubt whether this is of any significance. In all,
therefore, the evidence from this test is against
organo-chlorine poisoning of this patient."
I also received a report from the Public Analyst on the sample
of aspic jelly powder, which was stated to be quite satisfactory and
contained no excess of chemicals. The dust from the scaffolding was
reported as containing quantities of lead and arsenic, which was to
be expected as doubtless most of this had arisen from paint scraping
operations. The Analyst commented that he found it difficult to
believe that any appreciable quantity of dust from the scaffolding
could have gained access to the salmon mousse. In passing, I would
observe that the symptoms complained of bore no resemblance to acute
lead or arsenic poisoning.
I am afraid that no definite conclusion could be reached in
connection with this incident, and I think the problem will have to
remain unsolved. As no portion of the mousse could be examined, it
was impossible to decide what was the substance responsible for these
alarming illnesses.