ABSTRACT OF ENGLISH FISHERIES PATENTS. 25 



for inflating it witli air, causing tlie net to float. Empty casks are also 

 attached as floats. A weight is fastened to the bottom of the net by- 

 hooks, which may be opened at pleasure by a cord operated from the 

 boat to allow the net to be disengaged from the weight and float to the 

 surface of the water. Drawing, Plate IX. 



No. 492 of 18G1. — James. — The nets are buoyed by balloons inflated 

 with air, and having proper ballast (water). The nets are drawn in by 

 a windlass or by other suitable means. Drawing, Plate X. 



No. 1871 of 1803. — Hector. — The net is formed with compartments 

 and closing apertures to retain the fish iu the net. Drawing, Plate X 



No. 3334 of 18G5. — HuRN. — Forms the nets of continuous pieces of 

 tanned leather. No drawing. 



No. 193 of 186G. — Bryson. — Maintaining artificial light under water 

 for the purpose of attracting or decoying fish. 



First. Has a copper vessel with two compartments, into one of which 

 oxygen is forced or condensed, while the other contains hydrogen, also 

 forced or condensed. Each compartment is provided inside with a valve 

 to regulate the escape of the oxygen and hydrogen to the point of com- 

 bustion, so that these gases are not allowed to mix except at that point, 

 whereby explosion is prevented. Light having been applied to the 

 gases, the apparatus is lowered into the water and the gases continue 

 to burn until entirely consumed, the presence of atmospheric air to keep 

 up combustion not being necessary. The light is covered with a water- 

 tight glass globe, provided with a receptacle to contain the water gen- 

 erated during the combustion. The light, when introduced under the 

 water, attracts the fish thereto. Lime or other substance may be em- 

 ployed in contact with the gases. 



Second. Has nets for catching the fish attracted by artifical lights. 



Two nets, the upper being larger than the lower ; attaches weights to 

 the circumference of the upper net, and floats at and near its center, the 

 lower net being placed under the light. The upper net is let down over 

 it, which, owing to the weights and floats, descends somewhat in the 

 form of an umbrella, and incloses aU the fish within its reach, which 

 are thereby caught between the two nets. Drawing, Plate IX. 



No. 2008 of 1866. — Mack. — To the buoys and net anchors are attached. 

 The rope from the anchors serves as guide lines to the net. Lights are 

 also used to attract or liu^e the fish. 



a, anphors ; &, bottom of sea; c, main line to the buoys ; <7, stretching- 

 tackle for bottom of net •, e, stretching-tackle for upper part of net ; / and 

 g^ stream stopper-tackle ; /<, stretching- tackle to the surface of the waterj 

 ik, net ; ?, m, x, bait ; w, electric light ; o, j?, bags filled with herring ; Vy 

 buoy. Drawing, Plate XL 



