Weather indicators

1934. The garden-indicators of weather differ from those in common use only in two instances, those of the registering thermometer and regulating thermometer. The barometer, hygrometer, rain-gauge, and vane or Eolian index, may all be usefully employed in gardening, and should be fitted up in and about the gardener's office. The rain-gauge and vane may be placed on the roof of his office, and should communicate with the interior by means of tubes and machinery, the details of which are perfectly known to opticians, and such as fit up apparatus of this kind.