St. Louis, Aug. 10.- W. H. L. Brooks, alias Maxwell, the slayer of C. Arthur PrelIer, was hung in the jail in tuis city this morning at 'J:Ü1 o'clock. The drop was seven feet. Brooks was cahn a:id eollected to the last. At the same time Henry Landgraft, who killed his iweetheart with a pistol March 5, ;8S5, was swung off. Ui-ooks' body will be taken to England by his mother and sister and buried in the little cburchyard at Hyde, the boyhood home of the chloroformer.