CaUHos of Innauity.According to u high authority in mental diseases, two potent causes of insanity tiro hereditary transmission and alcoholic intcmpcrunct. No less than one-half of all occurring cases of insauity uro duo to iuhcritcd taint; one-fourth of all occurring cases of insauity arc duo to drillk. It appears from tho latest returns of pauperism that the number of insane paupers has greatly increased. Tiiys, in iS38, tho number of iusano paupers iii Engliflitl and Wales was under 21,000, hut in 1 $93 .the number had risen to nearly 83,000.—Exchange.