REVIEWS 4:20 



stations being within the range of Engehnann spruce. The mean 

 monthly temperature curves show that the temperature during the 

 growing season at Quesnelle Forks is sHghtly warmer and the tem- 

 perature at BarkervjUe sHghtly colder than at Tonaasen and Mesnalien. 

 The extremes in temperature are slightly greater in British Columbia 

 than in Norway, but as the length of the growing season is practically 

 the same and the mean monthly temperatures are very similar the fact 

 that the extremes are slightly greater in the two localities in British 

 Columbia there is reasonable certainty that the Engelmann spruce will 

 be frost hardy in the two localities in Norway. 



The precipitation at Barkerville and Quesnelle Forks when compared 

 with that at Tonaasen and Mesnalien show a striking similarity, both in 

 annual amount and in its distribution over the year. 



The writer's conclusion is that seeds of Engelmann spruce obtained 

 on the mountain slopes between Quesnelle Forks and Barkerville or 

 from other places in the same general locality are acceptable for use in 

 Tonaasen and Mesnalien and in other localities in Norway with similar 

 climate. It is believed that trees grown from seed collected at an eleva- 

 tion of 4,000 feet wall be found frost hardy at or even above the present 

 timber line in Norway. Although the quality of the wood of Engel- 

 mann spruce, its rapidity of growth and resistance to injury, are not 

 superior to the Norway spruce, as it is hardly with a shorter growing 

 season and is more wind-firm, it is worth trial in the high mountains of 

 Norway, at or slightly above the present timber line where the native 

 species is inferior. 



In similar manner to the above the five additional species are dis- 

 cussed from the point of view of distribution, silvical characteristics, 

 and climatological data. 



It is believed from the data studied that seed of lodgepole pine from 

 the higher altitudes in British Columbia is acceptable for use in the 

 birch belt in Norway considerably above the present coniferous timber 

 line. 



Special consideration is given to western red cedar for introduction 

 into the lowlands of eastern Norway. Due to its rapid growth, excel- 

 lent natural reproduction, and the superior quality of the wood, it would 

 if successful add materially to Norway's forest resources. 



The earlier work of Smitt on the climate of the coast of Norway as 

 compared with the northern Pacific Coast made it unnecessary for the 

 author to repeat the work. Smitt found that the climate of the two 



