17

less effective, and is in no way harmful, thereby differing
greatly from Tartar Emetic. The injection of this drug
during a paroxysm of the disease does not produce any
harmful effects. Its disadvantage is its cost.

In order to reduce this cost, experiments with a
combined treatment with both drugs were made. Of 26
camels treated by this method 22 were cured, one relapsed
twenty-five days after completion of the treatment, and
3 died. Of 17 ponies submitted to this treatment 14 were
cured.

It is interesting to note that amongst the number of
camels and ponies cured by this method were several animals,
which failed to withstand treatment by Tartar Emetic alone
showing that the shock to the system is not so great by
this method, enabling more emaciated animals to be
cured.

Observations are being made to try to discover if it
is possible for the bacha to contract infection from the
mother during its intra uterine existence. These observa-
tions are not yet complete.

Experiments have been made to discover if this
disease is transmissible through the medium of the mother's
milk. Up to the present, the results are negative.

Surra transmission experiments with ticks were com-
menced some years ago, with the object of ascertaining:—

(a)   For how long after feeding on an infected animal.
can a tick (O. Crossi) continue to spread the
disease;

(b)   For how long can a tick survive without food
after being fed on an affected animal. Twenty-six:
experiments were carried out during the year,
the results showing that these ticks are capable of
spreading the disease 622 days after being fed on
an affected animal, and up to the present some of
them have survived for 696 days without food.

The Fly Survey.—As the staff was recruited late in
the fly season, nothing definite can be stated for the present.
That portion of the province between the Chenab and Ravi

                                                                                          C