1919.]_. The Sixth Indian Science Congress. CCXVii 
A pened trial of the various methods showed that any one of them 
was saath good as any other provided only that discrete and isolated 
colonies were obtained, Little attention has however been paid to this 
me by the 
methods 
who in the elaboration of the principles of differentiation and enrichment 
have a altogether overlooked the importance of securing isolated 
colon 
Tt is is unnecessar y to take into count the actual number of: organism 
contained in a given histo when a eres quantities of elaborately capiaed 
and expensive media are used, this s extravagant method lacks the 
scientific precision which may ay attained if cognisance is taken of the 
probable number of organisms it agian ei in a given samp 
es iota ena Sigg ments with many samples of feces showed that 
m of i 
O 
o 20 and o mple i. 
may ee stated therefore that for pt bipeine Raed Seed! when the 
stools of a carrier wah 2 seta allied organ will suffice to 
detect such a carrier, if, ‘Bea ag th a go . of ‘ty ‘atsfacoriy ohaneet 
: ted ong such a gro 
perience how 
carrier, when venhaaa: or typhoid: like bacilli a it, contains 
when voided so large a proportion of these bacill, that the. sictiettnakion 
of a group of —. dictinietey isolated colonies planted on or inary 
ill suffi 
raed the principe of enrichment are unnecessary pains are taken 
onies. 
thie’ experience in mind and knowing that the be hor in 
ganisms found i 
cicace a oie emulsion then two platinum loops, some high titre 
atch glasses 
lamp, clone iden, stains and a microscope. 1 materi 
which should be in the possession of every medical ceasitaanee especially 
in India 
Enteric carriers.— By J. A. CrurcxsHank, and H. M. La 
- FRENAIrs. 
The feces and urine of 1,886 men invalided from overseas ie fevers 
Of the Satori Geroap hae ve been examined. On the average 6 weeks had 
