Geo. P. Rowell& Co., of New York, will issue on Mon'lay, May 2nd, the Nineteenth Annual edition of their standurd publication, the " American Newspaper Directory." The new volume contaius an exhaustiva list of all class pnblieatious so admirably arranged that any one of the three thousand papers represented there can be readily referrcd to aud all important fatts concerninfi it, together with its circulation rating, easily obtained. The Newspaper Directory will be used principally by publishers, advertisers and advertising agent.H, but the vast fund of information it contains makes it valuable to persons of almost every trade and profession . As a Gazetteer alone it is well worth the price charged, $5.00, for it fully describes every town in which a newspaper is issued, and few people care to know alout nny place where one ie not. The number of papers published in the United States, Territories, (ínelnding Alaska) and Cunada, is put at 15,420; an increaee oí 081 íd one year. The growth of newspapers in some of the Western states would be a matter of wonder, if it were not that tliia year is no exception to the rule. In Kansus the inórense is 89 and in Nebraska 64; while tlie Keystone state shows a smaller advance of 35 and the Buckeye state of 30. Pennsylvania exhibita the largest increase in dailies, 17; Kansas in weeklies, 81, and New York in monthlies, 52. tíeven states show a decrease, the most prominent instances being New Hampshire and Virginia, six each. Thewhole volume shows that great care has been taken to sustam its reputation as the most comprehensivo work of the kind yet published, and to insure accuracy iu every detail. Anything less than a complete compendium of American newspapers and periodioals would surprise those who are familiar with the former eflorts of this firm, who are so well-known as the oldest, largest and best known of all the American advertising agencies. What is the causa of a person having a feeling as though he had to jump or throw himself down, while standing near ene eago or me wau oe a niu muiuing, or place 40 or 50 feet above the ground? Xhis question is asked of the editor of the Herald of Health, and his answer in the journal is as folio ws: "Tlii feelhu is due, we think, to a sudden confusión of mind produced by the uew lituation in which one finds himself when brought to survey the prospect from a lofty elovation. It is a chance in relation to one's surroundings that seems at tirst to eet experience at fault, and the faculties of perception, therefore are at firat dis turbed and out of co-ordination. Size, weight, locality, etc, in many persons may requiro time to adjust themelres to the new conditiong. Alen who are accustomed to work at great elevations - roofen, paiuters, etc. - do not as a rule suffer from such morbid sensationn, beoause their faculties hure become educated to the relations of altitude." - Scientiüo American.