In _Notes and Queries_, 2-4-139, there is an account of a darkness in Holland, in the midst of a bright day, so intense and terrifying that many panic-stricken persons lost their lives stumbling into the canals. _Gentleman's Magazine_, 33-414: A darkness that came upon London, Aug. 19, 1763, "greater than at the great eclipse of 1748." However, our preference is not to go so far back for data. For a list of historic "dark days," see Humboldt, _Cosmos_, 1-120. _Monthly Weather Review_, March, 1886-79: That, according to the _La Crosse Daily Republican_, of March 20, 1886, darkness suddenly settled upon the city of Oshkosh, Wis., at 3 P.M., March 19. In five minutes the darkness equaled that of midnight. Consternation. I think that some of us are likely to overdo our own superiority and the absurd fears of the Middle Ages-- Oshkosh. People in the streets rushing in all directions--horses running away--women and children running into cellars--little modern touch after all: gas meters instead of images and relics of saints. This darkness, which lasted from eight to ten minutes, occurred in a day that had been "light but cloudy." It passed from west to east, and brightness followed: then came reports from towns to the west of Oshkosh: that the same phenomenon had already occurred there. A "wave of total darkness" had passed from west to east. Other instances are recorded in the _Monthly Weather Review_, but, as to all of them, we have a sense of being pretty well-eclipsed, ourselves, by the conventional explanation that the obscuring body was only a very dense mass of clouds. But some of the instances are interesting--intense darkness at Memphis, Tenn., for about fifteen minutes, at 10 A.M., Dec. 2, 1904--"We are told that in some quarters a panic prevailed, and that some were shouting and praying and imagining that the end of the world had come." (_M.W.R._, 32-522.) At Louisville, Ky., March 7, 1911, at about 8 A.M.: duration about half an hour; had been raining moderately, and then hail had fallen. "The intense blackness and general ominous appearance of the storm spread terror throughout the city." (_M.W.R._, 39-345.) However, this merger between possible eclipses by unknown dark bodies and commonplace terrestrial phenomena is formidable.