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ACANTHOPTERYGII.—SCOMBRIDÆ.

duce to London by vans, which travel during the night. The carriages in which the fish are thus conveyed are exempted by law from the post-horse duty. We presume that the extension of railway commerce has materially affected the transmission of fish, as well as of other articles, whose value is impaired by delay. During favourable seasons one hundred thousand Mackerel are brought to Billingsgate every week. At Hastings, ten thousand eight hundred have been ob-

MACKEREL BOAT OFF HASTINGS.

tained in a single day by four boats; and on the next day seven thousand by two boats. Sixteen boats brought into Lowestoffe a catch of Mackerel worth £5,252, the produce of one day’s fishing, in 1821; and the fishery of that year on