DISTRIBUTION OF B. COLI COMMUNE 
Experiment IV — Air of the Royal Infirmary, Liverpool 
Date 
Quantity of air 
aspirated 
Quantity analysed 
Remarks 
June 
June 
8 th 
i ith 
856 litres 
2,000 litres 
B. coli 
B coli 
absent in 430 litres 
absent in r,ooo litres 
Ward I (Medical), well ventilated 
Ward XII (Medical), well ventilated 
Experiment V — Air of a 
Stable 
July 
11-12 
2,380 litres 
B. coli 
present in 240 litres 
Stable badly ventilated. 
July 
12-13 
2,480 litres 
B. coli 
absent in 743 litres 
Stable badly ventilated. 
July 
I7-18 
1,600 litres 
B. coli 
absent in 800 litres 
Stable badly ventilated. 
II CULTIVATED SOILS (Manured) 
Samples of ploughed land were taken in the neighbourhood of Shrewsbury 
on June 23 and June 24, 1900 ; the weather was rainy, and most of the samples 
were damp, both when taken and when analysed. As will be seen from Table II, 
B. coli, which must have been added in quantity to the land when manured, was 
absent in almost every case in the quantity analysed. In No. 3, where B. coli was 
present, the sample was taken from a garden close to the shore of the river Severn, 
where the ground would probably be always kept moist. The samples were taken 
about an inch below the surface, as a rule, and were all in neighbourhoods which 
drain into the river Severn ; this is interesting in connection with the analyses of a 
number of land drains running into that river (T. T. Reports, vol. Ill, p. 25), in which 
B. coli was also found to be absent. The crops were only just showing, so that the 
time of manuring was probably not very far distant, but the B. coli had apparently 
been unable to withstand the drying, &c, it had undergone in the meantime. 
