ntages I got the same results, was completely knocked out and had
to go to bed. Sometimes the effect would come on a long time after I
used the dynamite, perhaps hours afterwards, and the headache would
increase, until I was intensely nauseated and had to give up entirely.
Is there anything to prevent that? Is it caused by the fumes after the
explosion?

MR. EVANS: Some say it is from handling the dynamite, others say it is
the fumes after the explosion. Red Cross has ammonia in it and that
ought to help some. Dynamite contains nitro glycerine and if you handle
it bare handed it gets in the pores of the skin and causes rapid heart
action. In dynamiting holes for tree planting you will get the fumes and
you will get a headache. If a man could work with gloves on he could
avoid this to a very great extent. You can't do it easily but if you can
do it without taking off the gloves I don't think it would bother you
much. I neglected to state that dynamite by itself is not dangerous
because it will withstand shock or fire or anything like that. The
danger is in the cap. It contains the most powerful explosive known. If
you handle them carefully, there is absolutely no danger. This year we
are slipping little copper disks into the caps with a pin hole for the
fire to strike through.

MR. HARGIS: I have difficulty in making the shots. Should you put your
cap at the bottom or the top of the stick?

MR. EVANS: I should advise the top. A misfire is always expensive. If
you think it is necessary put in a cap in the bottom and one in the top.

MR. POMEROY: If you have a misfire and the men don't like to monkey
around it, and neither do you, just step off a few inches and stick in
another one and let her go. Will that fix the stick that didn't go off?

MR. EVANS: That is the safest way.

MR. HARGIS: In tamping say you have a hole in a rock four feet. I have
had men tell me to pour the hole full of water. Is that right?

MR. EVANS: That is the best method known.

In tree planting you will always have to use your own judgment. Go down
four or five or six feet to learn the character of the soil, tamp the
cartridge well and as fuse is not expensive, always use plenty of it.

THE PRESIDENT: Any further discussion of this, or any further questions
on the use of dynamite?

MR. DOAN: Mr. President, I would like to mention a method I found
helpful. That is to make two holes in the cartridge, one diagonally
down from one side, thrus