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lation, and greatly benefit the fish as well as the owners 

 of the land, if cultivated on the banks. The Prickly Com- 

 frey, e.g. (Symphytum asperrimum), which yields such a 

 splendid forage by its abundant foliage, and many others, 

 are easily reared both from seed and cuttings, and should 

 do well in the low lands, while on the sandy beaches, near 

 the outlet of rivers and creeks, the cabbage radish (Pringlea 

 antiscorbuticd) would cover these barren and desolate places 

 with vegetation, and furnish an object of merchandise by 

 packing them for the use of fishermen and sailors in the 

 Arctic regions. The plant when cooked is a good sub- 

 stitute for cabbage, and has a most wholesome effect on 

 persons suffering from scorbutica. 



By a judicious forest management, which I will not 

 enter upon here, the land can be kept covered constantly, 

 and always in a state favourable to the purpose of storing 

 the water. That many of the evergreen trees may be of 

 great importance, and particularly where they are better 

 suited to clime and soil, I will not deny. The Australian 

 eucalypts, which have such a beneficial effect on the health 

 of man, may also serve well for pisciculture, but as far as 

 I know, no experience is yet at hand with regard to this. 

 Still I doubt if these trees might not do more harm than 

 good by being planted on watercourses, on account of their 

 great drying properties. In warmer countries, the place for 

 these trees is where stagnant waters during summer are 

 breeding places for fever and ague. The cultivation of the 

 borders of watercourses has also a great significance to us, 

 and it is here that the deciduous trees must be mainly 

 utilised. The belt need not be very broad, say half a chain 

 wide, and planted with good-sized plants at the rate of 

 from 800 to 2000 per acre, according to their age. Even 

 a double row of trees would be a benefit, but it is important 



VOL. VII. 



