SCIENCE AND INDUSTRY. 
HOW TUBERCULOSIS SPREADS AMONG CATTLE AND PIGS. 
The extent to which bovine tuberculosis, if uncontrolled, runs its 
course through a herd of cattle is shown in a recent report received by 
the United States Department of Agriculture from one of its. field 
inspectors in Illinois, and published in the Weekly News Letter. 
Every animal in a herd of grade Holsteins and Jerseys re-acted to the 
- tuberculin test. The herd consisted of 14 cows, 2 calves, and 2 bulls. 
Upon post-mortem examination, six of the animals showed such exten- 
sive lesions that the entire carcass was condemned and destroyed. All 
of the other re-actors likewise showed lesions, though not of such an ~ 
extensive nature as to necessitate destruction of the carcass. The fact 
that every animal in the herd re-acted and showed lesions makes the 
ease one of the most striking ever recorded. The danger of tuberculous 
cattle to swine was further demonstrated by the sale of hogs from this 
farm early in the year. The first lot of 21 hogs sold showed such 
extensive lesions of tuberculosis upon post-mortem that the packing 
company refused to accept the remaining 50. These were subsequently 
sold to a local shipper, and their identity and destination are not known. 
If the swine are still alive, they are undoubtedly a menace to other 
stock. The Bureau of Animal Industry cautions swine-owners against 
purchasing stock from farms where either tuberculous cattle or swine 
are kept. The Bureau inspector also reported that, a week after the 
shipment of hogs had been made, a milch cow—a chronic cougher—had 
died, and the younger stock was allowed to devour the carcass. Such a 
practice is résponsible for a great deal of tuberculosis among swine in 
the United States. According to Bureau officials, the facts stated should 
cause any live-stock farmer who finds tuberculosis among his hogs, or 
whose shipments of hogs are refused because of extensive lesions of 
that disease, to have his herd of cattle tested promptly. Unless the 
origin of infection is known and removed, tuberculosis is liable: to run 
its course among all the cattle and swine on the farm. 
INDIAN MANGO. 
The East Indian mango, states the Weekly News Letter, is one of 
the great fruits of the world.. To those who have really tasted the good 
sorts of it, the peach loses its place of highest honour. But the early 
travellers were more interested in describing its peculiarities than in 
extolling its wonderful fragrance and the depth of its flavours, for they 
told the plum and cherry eating inhabitants of the British Isles that 
the mango resembled a ball of tow soaked in turpentine and molasses, 
awd said, further, that in order to eat it you must undress and climb: 
‘into a bathtub, and that, after you ate it, you must comb its yellow hair- 
like fibres out of your teeth. No other fruit in the world has been so 
maligned. The mango trees, which are now loaded with their golden 
fruits in South Florida, are so valuable that the mayors of the towns 
of South Florida are being beseeched to keep the boys from stealing 
the fruit from the trees, not because they are balls of tow soaked in 
molasses and turpentine, but because, as they hang on the tree, they 
are worth 25 or more cents apiece, and a boy can eat up a 5 dollar bill’s 
worth in the time it takes to tell about it. The Office of Foreign Seed 
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