The Undertakers shall be liable to a Penalty not exceeding Two Pounds for every Twenty-four Hours during which the said self-registering Tide Gauge and Barometer shall not be provided or maintained, or such Account of the Wind and Weather shall not be kept as aforesaid ; and they shall be liable to a Penalty not exceeding Ten Pounds for each Month they shall neglect or refuse to send as aforesaid to the Secretary of the Admiralty a full and true Account of the daily Workings of the said Tide Gauge and Barometer, and of the daily State of the Wind and Weather.