. Pearls and pearling . used, and will also depend upon the number of hooksto each dredge and the nature of the river during the spring months when the current isstrong a mule 2J/2 feet by 5 feet will be large enough,but later in the summer when the water is lower and thecurrent is not so strong it will require a larger mule topull a large dredge. A strong but light wooden frameis made and covered with a heavy cloth. The cloth shouldbe tacked on rather loosely so the water can fill in likethe wind in a sail. This will make it pull better. Someuse a piece of gas pipe or other iro
. Pearls and pearling . used, and will also depend upon the number of hooksto each dredge and the nature of the river during the spring months when the current isstrong a mule 2J/2 feet by 5 feet will be large enough,but later in the summer when the water is lower and thecurrent is not so strong it will require a larger mule topull a large dredge. A strong but light wooden frameis made and covered with a heavy cloth. The cloth shouldbe tacked on rather loosely so the water can fill in likethe wind in a sail. This will make it pull better. Someuse a piece of gas pipe or other iron along the bottom ofthe mule to help sink it, although it is not really neces- 112 Pearls and Pearling sary to use a weight. The center wooden piece shouldextend a little above the rest of the mule and be sharp-ened so a small rope can be attached to it. The otherend is attached to the boat. This rope is tightened tobring the mule out of the water or by giving the mulemore rope it sinks deeper into the water and pulls. CROW FOOT HOOK, ACTUAL SIZE. f onrtesy of II. WMard Son d Co. How to Make a Crow-foot Dredge Outfit. 113
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