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The State Board of Health has another field wherein it may work to advantage. The following letter from a physician to the Chicago Morning News explains itself:
In view of the general belief, well or ill founded, of an early visit of cholera, it may not be amiss to indicate (apart from the deep dishonesty and rascality of the thing) one great danger and predisposing, if not certain, excitirg cause. I mean spoiled canned goods. The danger is all the greater because it may be deftly concealed. When canned goods spoil, the gases of decomposition may be liberated in volume sufficient to cause the ends of the can to bulge outward. These facts are known and understood in canning establishments, and by simply making a hole in the cap the gases are withdrawn and the can again sealed. Hence two holes in the can may be accepted as proof that
THE DANGERS OF CANNED GOODS.. JAMA. 1885;IV(14):379. doi:10.1001/jama.1885.02390890015005