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Show Swamps Put to Sew Uc l'urs I. me become so popular ia America that a new industry li;U sipruns up iu swampy district s. Mie rat farming, for vcars carried en :is , pastime only, now- Is a ihriv ins' in.iii-try in.iii-try in some sections of the Vni'ed States. H is found that captive aitisk-rats aitisk-rats become t.ime easily th.uii:h tlu'.v ate prey for ninny enemies. Thoy rv'-.pilre rv'-.pilre no feedings as they live on t v: vci;et at ion tvf marshes and pon.'.s. Twenty vents nc.i the nmskrnt m considered n pest. Some svvmiiiH where they are bred and raised a.xr are worth more than the arable l.mJ nearby. |