No. 523] 



NOTES AND LITERATURE 



447 



laboratory < 1 « < n 1 .- 1 i n and particularly the tentative or positive ei 

 elusions ho is able to formulate as a result of these invent initio 

 So far as regards the local dist rihut ion and association of speci 

 the reviewer is unable to discern that the general view thus 1 

 held as to the role of the so-called edaphie factors is in any w 

 modified, but our knowledge of the manner in which this n 

 is played has been materially enriched by the work of Profess 

 Spalding arid his collaborators. 



details of this book," there remains yet to consider the crow 



did it come to be what it is? Upon this point Professor Sp 

 ding's conclusions are quite positive, as indicated in the followi: 

 words from his book : 



The general continuity of geological history since the Tertiary in 

 cates a relatively long period within which plants of the Lahoran 



progress. The present Horn, therefore, may he assumed to be mer< 

 the final stage so far of just such a series of events as are n. 



We are unable to gather from these 

 Spalding means that "the processes go 



