Quarantine Edinburgh and Leith, grain was from that date declared to be a non-susceptible article. About 1788 an order of the council required every ship liable to quarantine, in case of meeting any vessel at sea, or within four leagues of the coast of Great Britain or Ireland, to hoist a yellow flag in the daytime and show a light at the main topmast head at night, under a penalty of After 1800, ships from plague-countries (or with foul bills) were enabled to perform their quarantine on arrival in the Medway instead of taking a Mediterranean port on the way for
Flag of Ontario the Canadian Red Ensign, which had been the "de facto" national flag of Canada since 1867. The flag is a red field with the Royal Union Flag in the canton and the Ontario shield of arms in the fly. The coat of arms of Ontario had been previously granted by Royal Warrant of Queen Victoria in 1868. It features a green field with three gold maple leaves and above it, a white band with a red St. George's cross. The specifications of the flag are 1:2. The shade of red in the flag is specified as "British Admiralty Colour Code