The effect of varying tonicity on the anaphylactic and other reactions of plain muscle / by H.H. Dale.

  • Henry Hallett Dale
Date:
[191 ?]
Catalogue details

Licence: Public Domain Mark

Credit: The effect of varying tonicity on the anaphylactic and other reactions of plain muscle / by H.H. Dale. Source: Wellcome Collection.

    16/26 page 530
    Figure 9 shows the effect of a similar change, made at a lower level of concentration; it will be observed that in this case an extremely small dose (0.002 mgm.) has to be used in order to avoid producing a supramaximal effect in the solution containing 0.75 per cent NaCl. A3 30 Fig. 10. Dose in Each Case 0.01 mgm. /3-Iminazolylethylamine At A uterus is in normal Ringer II, at B in the same diluted with one-eighth volume of 12 per cent cane sugar. The effect of dilution is due to the lowering of the tonicity of the solution. A diminution of the concentration in the electro¬ lytes, within the limited range with which we are dealing, has no effect, provided that the osmotic pressure of the solution is
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