Aqua regia is a mixture of nitric acid and hydrochloric acid.
Dollman's ability to throw a syringe really far, relative to his size, is not so surprising if shrinking is only flavor text. Then Dollman's throwing range doesn't change at all.
It does seem like he's about to lose two supporting cast members here, though...
Wait, where did this idea that Dollman has the strength of 20 men come from? Did they do some testing on him between the 2nd and 3rd panels?
Still...if he does have the strength of 20 men, then it sounds like he has access to the Get Tougher power already!
This is Reynolds of the Mounted and...man, that is one weird pillow! I don't think I will ever again see a pillow used in a trap, but placing radium ore inside it is devilishly weird and perfect for Hideouts & Hoodlums. I suppose there is a saving throw vs. science required every hour before the radium gives you amnesia?
This is Rance Keane, and here's an interesting fact: if you want to know if a mine has been played out, you can just call the U.S. State Department and they can tell you over the phone.
(Scans courtesy of Comic Book Plus.)