essential oil

It usually involves smelling different odorants, such as essential oils, at least twice a day for 10 to 15 seconds at a time over the course of weeks.

The State Department found that with high oil prices, the tar sands would be mined for oil, pipeline or no.

Pulling oil from the tar sands is costly, even more so when you tack transportation costs on top.

The focus here was on how fast oil would come out of the Canadian fields.

Total oil production figures include crude oil, natural gas liquids, and other liquid energy products.

On top of oil, the United States produces significantly more natural gas than Saudi Arabia.

In pursuing his alchemical researches, he discovered Prussian blue, and the animal oil which bears his name.

Water itself is of course essential to the growth of every plant, but the benefits of Irrigation reach far beyond this.

As a rule, however, persistent glycosuria is diagnostic of diabetes mellitus, of which disease it is the essential symptom.

Such are most probably given by the essential oils, which vary in amount in different species of the plant.

Movement to know that she was attired in appropriate costume—short frock, biped continuations and a mannish oil-skin hat.