16 



There is much to commend the manual to teachers. The 

 various chapters are prefaced with useful hints on presentation, 

 preparation, and source of materials. The choice of subjects is 

 excellent. The questions are clear, definite, and logical, and they 

 are designed, apparently, to give the pupil training in self-help. 

 It is evident that the author has succeeded in preparing a valu- 

 able manual because, in large measure, he has succeeded in 



omitting non-essentials. 



Emmeline Moore 

 Normal School at Trenton, New Jersey 



Jepson's " A Flora of California"* 



The beginnings of an ambitious and important work under the 

 above title have recently appeared from the hand of Dr. Willis 

 Linn Jepson, assistant professor of dendrology in the University 

 of California. The sixty-four pages now published are neither 

 the beginning nor the end of the completed volume or volumes, 

 but are the pages that are concerned with the families that con-r 

 tain most of the Californian trees, the group to which, of late, 

 Professor Jepson has devoted especial attention. It may be as- 

 sumed that the preceding and intervening pages are in an advanced 

 stage of preparation, otherwise the continuity of pagination 

 might easily meet with serious difficulties. As to the scope of 

 the work, one can at the date of writing simply draw inferences, 

 but the limitation of what is yet to appear in front of the Gym- 

 nosperms to thirty-two pages suggests the probability of the in- 

 clusion of extended keys to the families and the improbability 

 that a detailed treatment of the Pteridophyta will be attempted. 

 The famiHes of the Gymnosperms that find a place in the pages 

 already published are the Pinaceae, with the genera Pimis (17 

 sp.), Tsnga (2 sp.), Picea (2 sp.), PseudotS7iga (2 sp.), and Abies 

 (5 sp.); Taxodiaceae, with the genus Sequoia (2 sp.) ; Cupressa- 

 ceae, with the genera Libocedriis {\ sp.), Thuja (i s^.),CJuiuicEcy- 

 paris (i sp.), Ciipressus (5 sp.), dead Jtmiperus (4 sp.) ; and Taxa- 

 ceae, with the genera Taxiis (i sp.) and Torreya (i sp.). The 



* Jepson, Willis Linn. A Flora of California. Pp. 33-64. /. 1-13 ; 337-368. 

 f. 61-6^. 4 N 1909. Cunningham, Curtiss & Welsh, San Francisco. Price 90 

 cts. for pp. 33-64 ; 80 cts. for pp. 337-368. 



