Bly takes a vial from Lilian's pocket after he knocks her down. In the next shot when Brisco and Bowler find her, the vial is back in her pocket.
Several characters refer to "fortune cookies," a term not coined until the 1940s. In the 1800s they were called fortune tea cakes. Furthermore, this story connects the confection with California's Chinese culture, but it was originally a Japanese treat. The change from Japanese fortune tea cake to Chinese fortune cookie was a result of the cruel deportation of California's Japanese residents to Manzanar in the early 1940s, which opened up the market for the Chinese. (Although several anachronisms in this series are deliberately included as the result of time travel or mad science, this does not seem to be one of them.)