Scientific American Supplement, No. 401, September 8, 1883Various
Science
Scientific American Supplement, No. 401, September 8, 1883
Various
Science -- Periodicals
The last sketch represents their first meal on board after a fast of
thirty hours. Apple melons were chopped up for them by their "steward,"
who was to accompany them to Australia. It was curious to see a bird
swallow a great lump and then to watch the lump working slowly down
the animal's long neck. On the voyage they would be fed with maize or
mealies, onions, apple melons, and barley. They require very little
water; however, there were five large iron tanks on board in case they
would feel thirsty. Our engravings are from sketches by Mr. Dennis
Edwards, of Hoff Street, Capetown,
[Illustration: SHIPPING OSTRICHES FROM CAPE TOWN TO AUSTRALIA.
1. Ostriches on the South African Farm Where They Were Reared.--2.
Attempted Escape and Recapture of an Ostrich on Board Ship.--3. Lowering
the Birds Into the Hold.--4.A Queer Dinner Party--Ostriches Eating Apple
Melons.]
* * * * *
A NEW WEATHERCOCK.
An ordinary weathercock provided with datum points may, in the majority
of cases, suffice for the observation of the wind during the day;
but recourse has to be had to different means to obtain an automatic
transmission of the indications of the vane to the inside of a building.
The different systems employed for such a purpose consist of gearings,
or are accompanied by a friction that notably diminishes the
sensitiveness of the apparatus, especially when the rod has to traverse
several stories. Mr. Emile Richard, inspector of the Versailles
waterworks, has just devised an ingenious system which, while
considerably reducing the weight of the movable part, allows the
weathercock to preserve all its sensitiveness. This apparatus consists
of two principal parts--one fixed and the other movable. The stationary
part is designated in the accompanying figure by the letters A and B and
by cross-hatchings. This forms the rod or support. An iron tube, T, with
clamps, P, at its lower extremity forms the base of the apparatus, and
is hidden, after the mounting of the apparatus, by the ornamental zinc
covering, Z. The upper part of the tube carries a shoulder-piece,
upon which rests a bronze platform, E, and which is slightly inclined
outwardly to prevent the accumulation of water on it. Over the platform
there move three crystal balls, which are held and guided by a
horizontal disk movable around the stationary tube.
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