Archive image from page 24 of The development and protection of. The development and protection of the oyster in Maryland . developmentprote00broo Year: 1884 i.'ATin i;i;\ drioiis anh hi-ad Wlien the oysters arc culled upon tlie l)e(ls where they are cauuht the dead shells are thrown luu'k and the oysters upou a bed Miiieh has l)oeu overworked will therefore form a smaller part of the total contents of the dredge than they will ujiou a more prosi)erous and valuable bed. In a dredn'C which has been hauled over an unexhausted lied the liviui;' oysters are many and the s
Archive image from page 24 of The development and protection of. The development and protection of the oyster in Maryland . developmentprote00broo Year: 1884 i.'ATin i;i;\ drioiis anh hi-ad Wlien the oysters arc culled upon tlie l)e(ls where they are cauuht the dead shells are thrown luu'k and the oysters upou a bed Miiieh has l)oeu overworked will therefore form a smaller part of the total contents of the dredge than they will ujiou a more prosi)erous and valuable bed. In a dredn'C which has been hauled over an unexhausted lied the liviui;' oysters are many and the sludls are few, while the brin,t;s uji from an exhausted bed a ,s us with a, means for deciding whether a bed is deteriorating or nol. 'I'his method oJ' estimating the condition of the l)eds is a very rougli one, and the evidence is nol of mu(di value when only a single bed is examined. Tlie dead sliells are swejit into I lie cliaiuiel in s(une ])laces and covered up by sand or mud in otliers, so dial the dredge may come up filled with shells when-it happens to strike a bed where they have been swept together, and in another case, where most of the shells are buried, it may contain few sludls. Tf tlie dr(Mlge is heavy and is dragged with a long line it may dig into the mud and Ikm-ouu' iilled with old sliidls, where another dredge, or the same dredge, dragged in a different way, may contain few oi' none. Tlie contents of the dredge are determined l)y so many accidents that single observations of the ratio lietween shells and oysters are of little value, but tlie case is ditl'erent where a great number of dredgings are made. In 1S7() Mr. Otto Lugger visited most of our beds and measured tlie (|uantity of shells and of oysters olitained fnuii each. As lie made a great number of oliservations liis nsults give us a means of ascertaining the average ratio in iSTd. His results, obtained by the examination of twenty beds, show that in 1876 the dredge brought up •'.,';„, ])
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Keywords: 1880, 1884, archive, baltimore_publication_agency_of_the_johns_hopkins_, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, brooks_william_keith_1848_1908, drawing, historical, history, illustration, image, oyster_culture, page, picture, print, reference, vintage
