The active principles are _convallaramin_ and _convallarin_.
It is considered to act similarly to digitalis as a heart-stimulant,
especially when the failure of the heart's action is due to mechanical
impediments rather than to organic degeneration. It is best given in the
form of fluid extract in the dose of 1 to 5 cubic centimeters (15 to
75 minims), commencing with the smaller doses, and increasing, if
necessary, according to the effects produced in each individual
case.--_The Pharmacist_.
* * * * *
FLIGHT OF THE BUZZARD.
During my visit to the Southern States of America, I have had several
opportunities of watching, under favorable conditions, the flight of the
buzzard, the scavenger of Southern cities. Although in most respect this
bird's manner of flight resembles that of the various sea-birds which I
have often watched for hours sailing steadily after ocean steamships,
yet, being a land bird, the buzzard is more apt to give examples of that
kind of flight in which a bird remains long over the same place. Instead
of sailing steadily on upon outstretched pinions, the buzzard often
ascends in a series of spirals, or descends along a similar course.
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