Section 100. Perspiration

Perspiration is the evacuation⁠ of the juices of the body through the pores of the skin. It has been calculated (S. 4, N. 4) that there are⁠ above three hundred millions of pores in the glands of the skin which covers the body of a middle-sized man. Through these pores more than one half⁠ of what we eat and drink passes off⁠ by⁠ insensible⁠ perspiration. If we consume eight pounds of food in⁠ a day (App. § 9; S. 27, N. 8), five pounds of it (S. 4, N. 5, B) are insensibly discharged⁠ by perspiration. During⁠ a night of seven hours’ sleep we perspire about two⁠ pounds and a half. At an average we may⁠ estimate the discharge⁠ by⁠ sensible and insensible perspiration at⁠ from half an ounce to⁠ four ounces per hour. This (Dies) is a most⁠ wonderful part⁠ of the animal economy, and⁠ is absolutely necessary to⁠ our health, and even to our very existence.—The Rev. Dr. Dick.

Ausscheidung, f.

‘(there) to be’, here sich befinden. Place the reflective pron. after the conjunction daß. The words ‘above — pores’ come after the relative clause ‘which — man’, after which place the verb befinden.

die Hälfte.

entweichen.

mittelst.

unmerklich.

an.

aus´scheiden.

Say ‘During a seven hours’ (siebenstündig) sleep’.

two pounds and a half, drittehalb Pfund.

may = can.

durch.

auf.

bis.

Use the superlative of the adv. hoch.

part — economy, Einrichtung im tierischen Organismus.

Substitute a relative pronoun for the conjunction ‘and’, which will improve the sentence very much.

für.