It is impossible yet to measure the extent of the calamity. But the destruction of life and property must be something that it is appalling to think of, and the sorrow and suffering to follow are incalculable. A solemn obligation devolves upon the people of the whole country. We can not remedy the past but we can alleviate the present and the future. Thousands of families are homeless and destitute; thousands are without means of support; perchance, thousands are bereft of the strong arms upon which they have relied. There is an instant, earnest demand for help. Let there be immediate, energetic, generous action. Let us do our part to relieve the anguish and mitigate the suffering of a community upon whom has fallen the most terrible visitation in all our history. An Historic Catastrophe. When an American Charles Reade wishes in the future to weave into the woof of his novel the account of some great public calamity he will portray the misfortune which overwhelmed the towns and villages lying in the valley of the Conemaugh River. The bursting of a reservoir, and the ensuing scenes of death and destruction, which are so vividly described in "Put Yourself in His Place," were not the creatures of Mr. Reade's imagination, but actual occurrences. The novelist obtained facts and incidents for one of the most striking chapters in all of his works from the events which followed the breaking of the Dale Dyke embankment at Sheffield, England, in March, 1864, when 238 lives were lost and property valued at millions was destroyed. It will need even more vivid and vigorous descriptive powers than Mr. Reade possessed to adequately delineate the scene of destruction and death now presented in Johnstown and the adjacent villages. The Sheffield calamity, disastrous as it proved to be, was a small affair when compared with this latest reservoir accident. The Mill River reservoir disaster of May, 1874, with its 200 lives lost and $1,500,000 of property destroyed, almost sinks into insignificance beside it. The only recorded calamity of the kind which anywhere approaches it occurred in Estrecho de Rientes, in Spain, in April, 1802, when a dam burst and drowned 600 persons and swept $7,000,000 worth of property away. But above all these calamities in sad pre-eminence will stand the Conemaugh disaster.