This is a compilation of my five time-travel novelettes, published by Baen, September 2014.
The four Henry Vickers dinosaur-hunting stories have never been published together (which is odd now that I think about it). The dirigible comes from Travellers, a self-standing piece and a very unusual (gentle) one for me. I wrote it deliberately to prove that I could. Oddly enough, the story is now Steampunk; or I suppose Proto-Steampunk, given that I wrote it in 1980.
Includes:
Boundary Layer
Calibration Run
King Tyrant Lizard
Time Safari
Travellers