[AT] Preachers and Dynamite?

[Steve W.]

charlie hill wrote:
> I used to work with a guy that was a graduate of the Colorado School of 
> Mines.  He graduated sometime in the early 70's I think.  We were working as 
> cost engineers on a huge construction project
> and never got a chance to talk much about mining but he gave me a copy of 
> the Dupont Blasters Handbook.  It's more than a handbook.  It's over 500 
> pages hardbound on how to rig charges, time sequential charges, etc.   It's 
> mostly over my head as I know almost nothing about explosives.  I keep 
> thinking I'll study it sometime but I've had it for 30 years and haven't 
> done it so far.  My how time flies!
> 

This is the 1922 edition
http://knygos.sprogmenys.net/knygos/Angliskos/Dupont%20Blasters%20Handbook%201922%20ed.pdf

-- 
Steve W.