AMERICAN HONEY PLANTS 157 



Trifollum prafense is discussed at some length and decided in the 

 affirmative. 



In addition to his own observations, Mr. Pellett has availed him- 

 self of those of "a multitude of beekeepers" Avhose help he gratefully 

 acknowledges. Sometimes curious items of information are given, 

 such as the account of the introduction of the honeybee into Alaska 

 in 1809 by a monk named Cherepenin : " These bees came from the 

 Department of Kazan, in Siberia, and were brought that honey might 

 be added to the scanty food supply of the pioneer-teachers of the 

 Faith as well as to supply the candles for the church services. _ By 

 decree of [the] Church/ only wax candles can be used, and it is. 

 recorded that at Sitka in 1816 no services could be held for six 

 months because the supply of wax ran out. ... It should be observed 

 that a majority of [the honey-yielding] plants have pendulous flowers. 

 In a climate such as at Sitka, where the normal precipitation i* 

 120 inches, only pendulous flowers could protect the nectar." 



As we have already said, the book is attractively produced ; the 

 typography is excellent and the convenience of the reader is considered 

 by the addition of an excellent index. Our own bee-keepers wall find 

 in it much of interest : we note the inclusion of species not, we 

 think, usually regarded as bee-plants, such as Arctium and Poljf- 

 gonum Convolimlris, and notably of "Fireweed" {Upilobhcmanpfsfi- 

 folmm)so called because " it springs up following forest fires and 

 covers the burnt district with a dense growth "—which is important 

 as a source of honey — very light in colour and of high quality — m 

 much of eastern Canada and in many of the States. 



Forests, Woods, and Trees in relation to Hygiene. By Au&ustine 

 Henry, M.A., F.L.S., M.R.I.A., Professor of Forestry, Royal 

 College of Science, Dublin. Constable & Co. Ltd., 1919, pp. xii, 

 314, with 50 illustrations. Price 18s. net. 



The recent abnormal felling of our timber has brought home to us- 

 the often-urged importance of afforestation. This has been forcibly 

 maintained from the point of view of the inevitable future national 

 need of timber by Mr. E. P. Stebbing in writings previously noticed 

 in this Journal. Dr. Henry treats the subject from a different stand- 

 point, that of national health, the present work being an expansion of 

 three lectures given by him at the Society of Arts in May 1917,, 

 under the Chadwick Memorial Trust. His main sanitational topics 

 are the question of the proximity of trees to sanatoria, the value of 

 parks, open spaces, and trees in towns, and the species best^ suited for 

 such planting ; the hygienic importance of the afforestation of pit- 

 mounds in mining districts ; and the great importance of the affores- 

 tation of our public water-catchment areas. This last 'topic occupies 

 more than four-fifths of the volume, all the large urban water-catch- 

 ment areas in the United Kingdom being described seriatim with 

 maps and plans, and one chapter devoted to a discussion of the most 

 suitable species of trees for the purpose. These chapters constantly 

 exhibit Dr. Henry's well-known knowledge of the ecology and cultural 

 characteristics of the native and introduced trees of our islands, and 



