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A cover-glass preparation stained with methylene blue reveals the gonococci lying in pairs within the leucocytes. Trials for =sodomy= and =bestiality= are common at the assizes, but, as they are rarely reported, they fail to attract attention. Sodomy is a crime both in the active and passive agent, unless the latter is a non-consenting party.
In contrast with the foregoing measures for preventing the growth of these bacilli is the striking fact that they are readily killed by drying. This fact is proved by merely drying a small drop of material containing the bacilli on a cover-glass, and then placing this over some of the fluid on a glass slide.
Tease, with two needles set in small handles, a bit of raw, lean meat, on a slip of glass, in a little water. Continue until the pieces are almost invisible to the naked eye. Experiment 24. Place a clean, dry cover-glass of about the width of the slip, over the water containing the torn fragments.
It is not absolutely indicative of the presence of blood, for tincture of guaiacum is coloured blue by milk, saliva, and pus. A cover-glass is placed over this, and a drop of glacial acetic acid allowed to run in. It is again heated until bubbles appear. Crystals of hæmin may now be detected by the microscope. They are dark brown or yellow rhombic prisms. These bands indicate oxyhæmoglobin.
It follows that one might properly expect the psychoanalyst to dwell especially upon the seemingly phallic "symbols" in the Scratch-Reflex dream, which could be made out in the geometrical features of the microscope and cover-glass. He would thus, as I have shown, be led to unearth a sexual motive which might be a mare's nest.
With an ivory paper-knife scrape the back of the tongue or the inside of the lips or cheek; place the substance thus obtained upon a glass slide; cover it with a thin cover-glass, and if necessary add a drop of water. Examine with the microscope, and the irregularly formed epithelial cells will be seen. Experiment 2. To examine ciliated epithelium.
Make some scrapings from the inside of the cheek with a dull knife and mix these with a little water on a glass slide. Place a cover-glass on the same and examine with a compound microscope. The large pale cells that can be seen in this way are a variety of epithelial cells.
If we examine below the microscope a drop of liquid full of these organisms under a coverslip, we very soon observe a cessation of motion in all the bacteria which lie in the central portion of the liquid, where the oxygen rapidly disappears to supply the necessities of the bacteria existing there; whilst, on the other hand, near the edges of the cover-glass the movements are very active, in consequence of the constant supply of air.
The dream itself, for reasons, that will be obvious, I call the "Scratch-Reflex Dream." "I was looking down upon a microscope from the right side of the lens-tube, and could see, laid upon the stage, a glass slide. Under the cover-glass, in place of an ordinary specimen, there was supposed to be a new reflex, one of those discovered by my friend the neurologist, Dr.
The slightest movement of the thin cover-glass placed over the drop of water in which an amoeba is immersed, on a microscopic slide, suffices to act as a stimulus, and serves much the same purpose as an electric shock to the muscles of a man.
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