[ 9 ] 
flooded the entire station. As these drains received the washings of the 
infected shed and much of the excreta of the diseased buffaloes the con¬ 
ditions necessary for the general infection which occurred were present. 
The possibility of the disease having been conveyed by the attendants, 
buckets, etc., exists, but would not probably have caused so sudden and 
general a diffusion of the infection. 
Kwala Selangor Outbreak .—I had no opportunity of inspecting this 
outbreak, but Mr. Ford informs me that the first death was on or about 
January ioth to 12th, and the second 12th to 14th, amongst a shipment of 
eleven Indian calves which left Penang on January 2nd. As the existence 
of Rinderpest in Penang had not been notified they were not placed in 
quarantine at Port Swettenham, but marched direct overland, a journey of 
2 to 3 days. As will be seen from the dates of death the two first cases must 
then have been in the period of incubation. If they had been quarantined 
for the usual period of 10 days as they would have been if information of 
the outbreak in Penang had been given the disease in this severe form 
could hardly have been overlooked even with the imperfect supervision 
then exercised. 
That the infection took place at Penang, not on board ship, is probable, 
as 18 buffaloes imported at the same time in the same boat were not infected. 
A few days after this second death a local bullock died and after this 
the disease occurred amongst other local animals as well as amongst 3 other 
of the imported calves. In all there were 47 deaths before the epidemic 
was stamped out, and 23 of these were calves. 
Cases occurred not only at the original focus where the imported calves 
were attacked but at two stations along the road 2 and 3^- miles respectively 
from this place. 
To both of these places the transfer of cattle between the period from 
the outbreak of the disease, about January 6th, to its notification on 
February 8th, were definitely traced. 
The Kwala Lumpur outbreak occurred immediately after the Kwala 
Selangor one, but was only related to it in that it was also introduced by a 
cargo of Indian bullocks from Penang, then known as a result of enquiries 
made in connection with the Kwala Selangor outbreak to be an infected 
port. These 15 cattle left Penang by S.S. “ Pulau Rimau ” and arrived at 
Port Swettenham on February 3rd. They were detained at the Quarantine 
Station till February 13th, and were inspected at Kwala Lumpur on 
February 15th by the Veterinary Inspector. There were no deaths at the 
Quarantine Station and no illness was reported, but as there was at that 
time no skilled supervision at the Quarantine Station a mild attack might 
easily have escaped notice. On February 21st at Kwala Lumpur one of 
these animals died and the owner next day reported the death. On examin¬ 
ing the animals on the 22nd, one was definitely suffering from Rinderpest, 
but in the late stage, say sixth or seventh day, just after the temperature 
has fallen but with some of the symptoms still marked. Two other animals 
of the same batch presented symptoms of the mild form of the disease at 
about the same period. These three animals rapidly recovered, but though 
subsequently freely exposed to infection none of them developed the disease, 
thus confirming the preliminary diagnosis. As the usual period of death in 
Indian bullocks is the sixth or seventh day, as the other three animals were 
in the stage that is usual in mild attacks about the seventh day, it is probable 
that the onset in all four cases was on or about the 15th of February, and as 
