312 



Pine Barrens of Babylon and Islip, 

 Long Island, The, i 



Pinus, s; arizonica, 25 ; echinata, 159, 

 162; rigida, i, 3, 6, 8, 34; Strobus, 

 161, 162; strobiformis, 26; sylves- 

 tris, 201 ; virginiana, 159, 161, 162 



Piptoporus, 14; suberosus, 15 



Piscidia, 115 



Planera, 235 



Plant industry, 2,2^, 270 



Plant Pathology in its Relation to 

 Other Sciences, 22"/ 



Plant Protein, Our Present Knowl- 

 edge of, 271 



Plant Remains of the Scottish Peat 

 Mosses, Lewis's (review), 200 



Plant Respiration, A Simple Modifica- 

 tion of the Experiment to Show 

 the Gaseous Exchange in, 121 



Plant Respiration, Notes on Experi- 

 ment in, 120 



Plantago, 159; Rugelii, 162; virginica, 

 162 



Plantanus Wrightii, 25 



Plants, Curtis's Nature and Develop- 

 ment of (review), 31 



Plants, List of British, Druce's (re- 

 view) 



Plants in the City of New York, 

 Suggestions for Future Work on 

 the Higher, 153 



Platanus, 162, 235 



Plea, An Editorial, 201 



Poinciana, 9 



Pollard, C. L., Dictionaries and their 

 Relation to Biology, 33 



Polygala, 159 ; lutea, 6 



Polygonella articulata, 161 



Polygonum, 159, 264, pennsylvanicum, 

 161 



Polyphylly in Washingtonia, 164 



Polyporeae of Temperate North 

 America, A Key to the White and 

 Bright-colored Sessile, 14, 2y, 130 



Polyporus, 173 



Polystichum munitum, 164, 165 



Polytrichum commune, 60 



Pond, R. H., personal, 36, 208, 251, 

 265 



Populus, 8 ; grandidentata, 4 



Poronidulus, 15 ; conchifer, 29 



Porotrichum cobanense, 295 



Porter, C. E., personal, 207 



Posoqueria, 115 



Potamogeton, 262 



Potentilla, 159, 200 ; canadensis, 161 ; 

 comarum, 201 



Poulton, E. B., 152, 2t(> 



Pringle, C. G., personal, 92 



Pritchardia, 240 ; pacifica, 240 



Proceedings of the Club, 20, 32, 57, 

 80, 117, 144, 170, 265, 294 



Products, Hanausek's Microscopy of 

 Technical (review), 79 



Prunella vulgaris, 162 



Prunus salicifolia, 25 ; serotina, 161, 

 162 



Pseudotsuga taxifolia, 26 



Psittacanthus polyceps, 11 



Ptelea, 26 



Pteridium aquilinum, 4, 6, 34 



Pteridophyta, 31 



Pulp wood, manufacture and con- 

 sumption of, 250 



Pulsatilla, 116 



Pycnoporellus, 15; fibrillosus, 132 



Pycnoporus, 15; cinnabarinus, 132; 

 sanguineus, 132 



Pylaisia subdenticulata, 60 



Quantitative Work in High School 



Botany, 224 

 Quantitative Work in High School 



Science Courses, 223 

 Quercus, 235; acuminata, 162; alba, 



4, 161; borealis, 169; coccinea, 4; 



ilicifolia, 3, 5, 8, 34 ; marylandica, 



159; minor, 4, 159; palustris, 161; 



Phellos, 159, 161, 162; prinoides, 



3, 4, 8, 34; Prinus, 156, stellata, 4 



Radicula, 114 



Radioactivity and Life, 2Tj 

 Rainey, F. L., personal, 179 

 Ranunculus, 116, abortivus, i6i 

 Rane, F. W., personal, 208 

 Raphidostegium Novae-Cesareae, 60 

 Rare Myxomycetes, Three, 253 

 Reade, J. M., personal, 231 

 Recent experiences in Mexico, 266 

 Redwoods, 248 

 Reed, M. H., 119 



Relation of Chemical Stimulation to 

 Nitrogen Fixation Sterigmatocystis, 

 The, 1:9 

 Remarks on the Genus Boletus, 81 

 Reynolds, E. S., Plant Pathology in 

 its Relation to other Sciences, 227 

 Reviews : Beccari's American Palms, 

 238 ; Britton's North American 

 Trees, 167 ; Cole's Bermuda in Peri- 

 odical Literature, 56 ; Curtis's Na- 

 ture and Development of Plants, 31 ; 

 Druce's List of British Plants, 113; 

 Gray's Manual, 259 ; Grout's Mosses 

 with Hand-lens and Microscope, 

 141 ; The Guide to Nature and to 

 Nature Literature, 141 ; Hanausek's 



