The Delaware Division of Historical and Cultural Affairs will continue its Coffee Hour lecture series with two more presentations, set for 5:30 to 6:30 p.m. Thursdays at The Old State House, 25 The Green, Dover.

“ILC and the Space Suit” will be held April 19. William Ayrey, manager and company historian for ILC Dover will discuss the development and usage of the space suit. Since the beginning of project Apollo, ILC has been the designer and producer of the space suit pressure garment for NASA. ILC engineers and technicians helped make history when they developed the first highly mobile space suit — Apollo A7LB — that allowed astronauts to walk on the lunar surface in the late 1960s and work on Skylab in the 1970s.

“Doctor James Tilton and the Tilton Hut” will be held on April 26. Historic interpreter Dennis Fisher will discuss how this life saving invention, developed by James Tilton came about in the 1700s. Tilton, of Dover, grasped the principle and used it to save the lives of men under his care a century before germ theory was accepted. Tilton, the first surgeon general of the U.S. Army, noticed that soldiers mixed together in military hospitals tended to catch things from each other. Attendees can hear how this Delawarean’s life saving invention changed the future of hospitals.

For more, call 744-5054.