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The provision of good fresh vegetables and fresh, springlike air would almost certainly be up to her department. The other two labs, Dr. Carmencita Schorlemmer in chemistry, and Dr. Chi Tung in physics, were both working on the air-restoration problem by different means electro-chemistry in the one case; gas dialysis membranes in the other.
Wharton, and into at least one drug-store, before it reached Professor Aiken, whose analysis was as faulty as before. Any tartar emetic present in the sediment might have been procured in a pure form by the simple process of dialysis. The only apparatus necessary for this would have been a glass vessel divided into two compartments by a piece of hog's bladder stretched across it.
The contents of the stomach or vomited matter should, if necessary, be diluted with pure distilled water and filtered. The stomach should be cut up into small pieces and boiled for some time in water. The solution, filtered and concentrated, is now ready for testing. Blood, milk, etc., may be separated by dialysis, and the fluid so obtained tested. A sulphate may be present.
Under these conditions some of the sugar solution passes through the bag into the water, and some of the water passes from the vessel into the bag. The force here concerned is a force known as osmosis or dialysis, and is always exerted when two different solutions of certain substances are separated from each other by a membrane.
Instead of eating apples, as Adam did, we work the fruit up into apple-jack and pie, while even the simple oyster is perverted, and instead of being allowed to fatten up in the fall on acorns and ancient mariners, spurious flesh is put on his bones by the artificial osmose and dialysis of our advanced civilization.
After digestion, therefore, the food is dissolved in the liquids in the stomach and intestine, and is in proper condition for dialysis. Furthermore, the structure of the intestine is such as to produce conditions adapted for dialysis. Within the intestinal wall, at A, is the food mass in solution.
Here are proper conditions for osmosis, and this process of dialysis will take place whenever the intestinal contents holds more dialyzable material than the blood.
Method of Extraction from the Stomach. Dialysis as for other soluble poisons. Tests. Precipitated from its solutions by potassium carbonate or sulphuric acid. Burnt on platinum-foil, it gives a green colour to the flame. Symptoms. Besides those of irritants generally, violent cramps and convulsions, headache, debility, dimness of sight, double vision, noises in the ears, and beating at the heart.
Movements between the blood and the lymph are known to take place in part according to a general principle, known as osmosis, or dialysis. *Osmosis.*—The term "osmosis" is used to designate the passage of liquids through some partition which separates them. The cause of osmosis is the motion of the molecules, or minute particles, that make up the liquid substance.
The contents of the stomach or its coats should be finely cut up and boiled in water, acidulated with tartaric acid and subjected to dialysis, or strained and filtered. Pass hydrogen sulphide through the filtered or dialyzed fluid until a precipitate ceases to fall; collect the sulphide thus formed, wash and dry it. Boil the orange-coloured sulphide in a little hydrochloric acid.
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