INDEX 



Abbreviations, 101-102 

 Acknowledgments, 2-3 

 Anatomical problems, 267-272 

 Arcs, 76-83, 113- 1 14 



compound, 76 



simple, ^6 

 Buds, lateral, 202-204 



terminal, bud scale scars, 30 



terminal, xylem in, 199-202 

 Chronology, 266-274 

 Classification of growth layers, 33- 

 120 



ecologic significance, 11 4- 120 



introductory discussion, 33-35 



longitudinal variations, 99-112 



summary of, 11 2- 114 



type relationships, 113-116 

 Climatic causes, 253-265 

 Climatic data, Lubbock, Tex., 4, 6-10, 



224 

 Compression wood, 38, 255-256 

 Conclusions, 288-290 

 Contacts, completeness of, 55 



definite, 40 



diffuse, 40-52 



indefinite, 40 



sharp, 39-40 



summary, and conclusions on, 55 



variable, 52-53 

 Curtains, 92-94 

 Cycles, 278-279 

 Dating, absolute, 23, 32-33 



by artificial frost, 27-28 



by natural frost, 24-27 



by number of diameter flushes, 31-32 



by structural features, 32 



by tip growth, 28-31 



detection of multiplicity, 126-127 



methods of, 24-33 

 Densewood, discussion of, 35-36 



divided, 84-89 



interrupted, 89-90 



outer margin, 261-262, 268 



stringers, 54-55 



Diameter flushes, relation to tip 

 flushes, 31-32, 183-204 



summary of relations, 199 

 Ecologic significance, classification, 



1 14-120 

 Environment, 



Chisos Mountains, 5, 11 



Lubbock, Tex., 3-5 



northern New Mexico, 5 



Washington, D.C., 11 



Yuma, Ariz., 11 

 Frost, artificial, 27-28, 21 



injury, 25-27 



natural, 24-27, 32-33 



recovery, 25-27 

 Growth flush, 121 

 Growth layers, annual, 39, 56 



classes, 56-113 



complete, 57-58 



contacts between, 38-56 



definition of, 120-121 



descriptive abbreviations, 101-102 



entire, 56-58 



frost-induced, 253-255 



incomplete, 57-58 



intra-annual, 39, 56-57 



partial, 58-59, 127-128 



single and multiple, table of, 122 



summary of types, 112-116 



terms, 35-38 



thin outer, 57, 269 

 Invisible margin, 113 

 Lenses, 59-76, 114 



compound, 61-62 



concurrent, 63-64 



half, 67-76, 114 



low power, 65-67 



overlapping, 65 



simple, 60-61 



temporary, 76 

 Lightwood, atypical, 46-48 



discussion of, 35-36 



divided, 89 



interrupted, 90-92 

 Methods, macroscopic, 20-22 



microscopic, 22-23 



293 



