84 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



At TroUhattan, the celebrated cataract of the Giita river was 

 visited. The members gathered together upon the island of 

 Toppon, which is simply a great gli^s^S: /boulder in mid-stream. 

 On both sides of it the foaming torrent' 'roars and bellows as it 

 throws itself over the rocks. There is a majesty in such a 

 splendid exhibition of power. Other falls and rapids farther 

 down the river have received names that reflect the feelings they 

 engender. Dodens Gang is the " Way of Death," Jattegryta is 

 the "Giants' Cauldron," while "Hell's Gate " is yet more dread- 

 ful. The canal locks, by which vessels avoid the falls, are very 

 wonderful. They allow of navigation up a river whose waters 

 fall more than a hundred feet in a short distance. The Swedish 

 Government realises that in TroUhattan Falls exists an enormous 

 energy capable of being put to xiae; but a dis2:)Uted question of 

 ownership must be settled by litigation before the State can 

 erect woi'ks. At present, water-power equal to only 4000 out of 

 an estimated total of 220,000, horse-power, is utilised. One of 

 the factories using the water-turbine was visited by some of the 

 members, and the party returned to Gothenburg in the evening. 



The Society had taken a long and interesting circular route ; 

 and it only remained to thank those who had so largely 

 contributed to the success of the Excursion. Lord Mansfield, in 

 the name of the Arboricultural Society, despatched a message 

 to His Majesty, King Oscar, who responded graciously. Mr 

 Nyman was heartily thanked for his able direction in conduct- 

 ing the tour. No office was more important than his, and he 

 fulfilled it well. To Mr Nilson a special mark of esteem was 

 shown : with everyone he had been the same painstaking worker, 

 ready and anxious to give all information in his power. 

 Personally, I desire to acknowledge my indebtedness to him, for 

 - my notes are mainly taken from facts he acquainted me with. 

 In their forest guide the arboriculturists were most fortunate. 

 The passage home was accomplished in the s.s. " Bele," and 

 pi'oved less terrible than the outward voyage ; it occupied almost 

 . exactly two days. The Society arrived at Granton on Sunday 

 the 3rd of August. 



The Excursion of 1902 has been a memorable one. In it the 

 Society made the acquaintance of Britain's largest exporter of 

 timber. The conditions under which Sweden procures the 

 timber it sends to us are now more exactly understood. It is 

 the product of primeval forest, that lies far to the north of the 



