Compass plant

Sweet coneflower Rosin weed Compass plant... 

Uses. 1) L. Greener F.A. Hanser, A Sea-Water Aluminum Torpedo Propulsion System , Underwater Missile Propulsion, Compass, Arlington (1967), 283—93 [A torpedo turbine proplsn system which exploits the reaction between Al and sea-w as a power source is analyzed. The power is generated by the reaction of molten Al with w. The authors concluded that this system appears capable of the greatest performance possible from a chemically powered torpedo power plant. They predict that the system will... 

But, as it happens in most countries, the number of simples occasionally employed in practice is much greater than it suits the proper compass of a Pharmacopoeia to contain. In the present work, those native articles have been introduced which were considered to possess qualities sufficiently important, or which were found to be so much employed by practitioners, as to give them any claim to the character of standard medicines. In several instances native plants have been substituted for European ones of the same genus, where their qualities were esteemed the same. 

The support facilities of an onshore oil weU are localized away from the well drilling area and, in particular, upwind with respect to the prevailing wind direction the compass rose should always be taken into consideration in choosing the most suitable site for a plant with regard to the effects of atmospheric interactions (Figure 12.27). 

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