{"newspaper_name": "State journal & flag.", "edition": "01", "page": "p4", "byline": ""}
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ceSsary to the existence of animals and plants, and to the support of combustion on the face of ihe globe. IL exists also largely in the water, every nine pounds of lhis liquid containing eigh pounds of oxygen.

 But the quantity of this substance which IS .tored up i'll the solid rocks IS sIill more remarkable. Nearly one-hai of lhe weight of the solid rocks which compose the crust of our globe of every l solid substance we see around uS-of the houses in which we live, and of the stones Oh which we tread-of the soils which we daily cultivate, and much more than one-hall by weight of the bodies of all living animals and plants, consist of this elementary body oxygen, known to us, as have already said, only in the state of a gass. It may not appear surprising that any one ele- menlary substance should have been formed by the Creator in such abun- dance as to constltue nearly one half by weight of the entire crust of our globe, but 1t must strike you as remarkable, that this should also be the element on the presence of which all animal life dependS-and as nothing less than won- derlul, tha. substance which we know only in state of thin air, should, by some wonderful mechanism, be bound up and imprisoned in such vast stores in the solid mountains of the globe. be des- lined to pervade and refresh all nature in the form of water, and to beautify and adorn the earth in the solid parts of animals and plants. But all nature is full ofsimilar wonders, and every step you advance in the study of the princi- pies of the art Ey which you live, you will not fail to mark the united skill and bounty of the same great Contriver.

 Oxygen gas is heavier than common air in the proposition of about II to 10 its specific gravity by experiment. is I-lo26, air being J it is also capable of being absorbed by water to certain extent. One hundred measures of wa, ter dissolve l-2 of this gas De Saussure. According to Dr. Henry, 100 volumes ofwater absorb only l.2 of oxygen.] Rain, spring, and river waters, always contain a portion of OK ysen which they have derived from the atmosphere, and this oxygen, as they lrickle through the soil, ministers to the growth and nourishment of plants in va rlous ways. Some of these will be ex- plained in a subsequent lecture.

 In an atmosphere of pure oxygen gas, plants refuse 10 veeetate and speedily perish"

 1ln rhis state it is readily obtained hy heating in glass the red oxide of mercury oftho shops. or white salt known by the namc of ell ratt of