Show the meaning of 49 40 vo dynamite ANY users of explosives do not know MANY M what the percentage markings or op cases and cartridges mean they know that thai 40 dynamite is stronger than 30 and 50 is stronger than 40 but do not know what whai these figures actually represent the first dynamites contained only nitro glycerin and an absorbent forty per cent meant that 40 of the contents was nitro glycerin today this is true of straight nitro hl glycerin dynamite but on other grades the th percentage figures refer to strength not con tents and it is strength that is important to you any dynamite honestly marked today is as a strong as dyn dynamite arnite actually containing ar an amount arnoult of nitroglycerin equal to the tag figures hercules 40 nitroglycerin dynamite con bains 40 nitroglycerin and hercules 40 ammonia and gelatin dynamites have the same strength and will do the same amount of 0 work pound for pound cartridge for cartridge hercules gelatin is stronger because it is he heavier aier with the exception of some special grades of strengths well known to those who use thern them the strength of hercules dynamites is always alway clearly marked on the cases and cartridges and am the goods correspond exactly to the markings in purchasing hercules explosives you run no n risk honest products truthfully marked have hav won universal confidence in hercules goods A nv sn if you oll are interested in goods of 0 f this character we shall be glad to hear heal jj from you REP CULES POWDER CO kearns building building utah san francisco cal 1 7 |