176. THE AMERICAN BOTANIST 



minutely all phases of plant study. There are to be more 

 than a dozen volumes divided into many "teils," "hefts" and 

 "lieferungs," each written by acknowledged authorities in 

 their special fields. These are appearing as fast as ready. 

 The latest is lieferung 135 entitled "Pflanzenuntersuchungen" 

 consisting of sections by Hans Winkler on methods of graft- 

 ing and related matters and by Bohumil Nemec on regener- 

 ation in plants. It is perhaps needless to say that the parts 

 that have thus far appeared are characterized by the pain- 

 staking thoroughness for which the Germans are famous. 

 The parts are well illustrated and well printed and will un- 

 doubtedly be of value to students of plants who are familiar 

 with German. The parts are bound in paper and range in 

 price from 3 to 6 Swiss Francs. 



James Berthold Berry's "Farm Woodlands" with its ac- 

 companying flock of tree manuals forms an unique enterprise 

 in the realms of forest literature. The book is designated 

 as a textbook for schools and colleges and a handbook for 

 practical farmers and we are inclined to think that both 

 groups will find much of value in it. The author's principal 

 theme is the organization of the woodland in such a way 

 that a maximum amount of wood or other products will be 

 derived from it and his book is a complete guide to such 

 practices in this country. The twenty-three chapters bristle 

 with facts ; indeed it would be difficult to find a phase of 

 forestry that the author has not touched upon. N(^r do all 

 these subjects pertain to the production of timber or fuel. 

 Among other topics selected at random from the b(^ok are 

 the influence of forests on rainfall and water-power, the 

 forest regions of the world, the wood using industries, 

 seasoning lumber, tree nurseries, wood preservation, care of 

 shade-trees, maple products, and basket willows. More than 

 150 illustrations mostlv from the V. S. Forest Service add 



