638 The Relations of the Diseases of Animals to those of Man. 
in colour, taste, or consistence, especially when the taste is 
in any way nauseous ; (2) any milk that is prejudicial to 
health, or which on good grounds is suspected of being so. In the 
first group he would class colostral, blue, red, and yellow milk, and 
slimy or thready milk (all of which owe their peculiar properties to 
the growth of micro-organisms), bitter, salt, or abnormal-smelling 
milk, and milk that has been rendered impure by accidental con- 
tamination with dirt of various kinds. In the second group would 
come the milk of animals that have been fed on poisonous fodder, 
or to which have been administered certain medicaments. Under 
this classification would come also the milk from animals sufiering 
from tuberculosis, malignant pustule, cowpox, aphthae, suppuration, 
ulceration, &c. ; the milk from animals affected with feverish 
ailments or with different forms of inflammation of the udder ; milk 
which might be infected by immediate contact with patients 
sufiering from typhus, cholera, &c., or through being kept in rooms 
where such persons were lodged ; and, finally, milk might become 
injurious and unfit for sale through being carried in unsuitable 
metal vessels, from which injurious substances might find their way 
into the milk. In order to guard against these dangers, he con- 
siders that it is advisable : (1) That all dairy farms should be 
licensed ; (2) that all animals kept for milking should be examined 
by a veterinary surgeon at frequent stated intervals ; (3) that the 
ownei'S of dairy farms should be bound to supply good, undamaged 
fodder to the cattle, and to give immediate notice of the ilhiess of 
any milch cow to the attendant veterinary surgeon, Avithout whose 
leave the milk from a diseased animal should never be allowed to be 
sent to market ; (4) that the milking should be performed with 
punctilious cleanliness, and that no person suffering from an infectious 
disease should be employed for milking cattle ; (-5) the milk, 
mixed, should be cooled and stored in special rooms, not in living or 
sleeping rooms ; (6) milk should be transported only in suitable 
vessels ; (7) during the prevalence of aphthte, only milk that has 
been boiled should be brought into market ; whilst all milk men- 
tioned above, under headings (1) and (2), should be rigidly excluded, 
and on the outbreak of any epidemic in a house where dairy farming is 
carried on the sale of milk should be forbidden ; (8) the greatest 
care should always be exercised in obtaining the so-called '' infants' 
milk." The regulations as to the feeding of cows, attention to 
cleanliness in milking, and the cooling and proper ti'ansport of 
the milk, should be strictly observed. 
In the discussion that followed, the prevailing opinion seemed to 
be that the introduction of general regulations was required, but that 
the power should not be placed in the hands of local authorities, who 
rarely took advantage even of the powers that they had, under the 
Contagious Diseases (Animals) Act, to enforce regulations with re- 
gard to the milk supply. These necessary regulations really resolved 
themselves into (1) the registration of all dairy farms, cowsheds, and 
milk-shops ; (2) efficient inspection of all such registered premises. 
Professor Brown hit the nail on the head when he gave it as his 
