178 



The Biological Society of Washington. 



Page 



Mictorays 57,60-63 



Mictomys dalli 62 



innuitus 61 



truei 62-63 



wraugeli 63 



Mikania scandens 35 



Miller, Gerrit S., Jr. ; Central American 

 Thyroptera 109-112 



Milk dentition of Desmodus 113-114 



Subgenera of Voles (Microtinae) viii 



Monarda punctata 37 



Monotropa hypopitys 36 



Moore, V. A. : Flagella of motile bacteria 



with special reference to their value in 



differentiating species vii 



Muhlenbergia sobolifera 41 



Musdecumanus 94, 96 



musculus 95 



rattus 94 



volans 164 



Muscari racemosa 3 s 



Mustela americana 13, 5 1 



boccamela 20 



cicognani 18 



erminea 7 



freiiata 9 



fusca J 8 



longicauda 7 



pennanti 5 1 



pusilla 19 



richardsoni 13 



vulgaris 18, 20 



Myosotis laxa 37 



N 



Nasturtium armoracia.. 



sylvestre 



Neogale 



Neosorex 



Neotoma baileyi 



pennsylvanica 



6 

 50 

 135 

 96 



CEiiothera pumila 34 



sinuata 34 



Ophioglossum vulgatum 43 



Orobanche minor 37 



Oxyria digyna 107 



Palmer, T. S. : Rabbit drives in the West... vi 



Panicum capillare var. minima 42 



comniutatum 42 



lanuginosum 43 



microcarpon 42 



nitidum 43 



proliferum 42 



pubescens 43 



ramulosum 42 



Page 

 Panicum scoparium ..................................... 42 



sphaerocarpoii ..................................... 42 



viscidum .............................................. 42 



Papaver dubium ...................................... 31, 106 



midicaule .............................. .............. 106 



Pastinaca sativa ........................................... 34 



Pentstemon Isevigatus ................................. 37 



attwateri ....................................... 136, 137 



Peromyscus aureolus ............................. 120, 122 



Peromyscus be 11 us ................................. 137 



canadensis ........................................... 49 



Peromyscus cauadeusis ametorum.. 49-50 

 floridanus ........................................... 122 



gossypinus .................................... 119-125 



gossypinus mississippiensis ......... 123-124 



Peromyscus gossypinus iiigricu- 

 lus ................................................... 124-125 



nus palmariiis .................. 124 



96, 120, 122 

 122 

 121 

 137 



leucopus 

 mearnsi 

 niveiventris 

 rowleyi 



Phacelia covillei .......................................... 36 



parviflora ............................................. 37 



Phalaris arundinacea .................................. 42 



canariensis .......................................... 42 



Phaseolus perennis ...................................... 34 



Phenacomys ................................................. 46 



Phlox pauiculata .......................................... 36 



Physalis philadelphica ................................ 37 



pubescens ............................................ 37 



Pieters, Adrian J. : Influence of fruit-bear 

 ing on mechanical tissue of twigs ......... viii 



Pirus coronaria ............................................. 34 



Plantago patagonica var. aristata ............... 38 



Plover, New, from Madagascar ............... 53~54 



Poa flexuosa ................................................. 4 2 



sylvestris ............................................. 42 



Pogonia ophioglossoides .............................. 38 



verticillata ........................................... 38 



Pollard, Charles L,ouis : Further remarks 

 on Britton and Brown's illustrated 

 flora ....................................................... xii 



- Iresine paniculata, an addition to 

 the flora of Washington ........................ xi 



- Observations on flora of District of 

 Columbia ................................................ viii 



- Purple-flowered, stemless violets of 

 Atlantic coast ...................................... 85-92 



Polygala ....................................................... 86 



ambigua .............................................. 33 



curtisii var. pychnostachya ................ 33 



incarnata ............................................. 33 



verticillata ....................................... 30, 33 



Polygonum muhlenbergii ........................... 38 



bistorta ................................................ 105 



tenue ................................................ 30, 3 s 



viviparum ........................................... 105 



Potentilla fragiformis .................................. 106 



maculata .... , ...................................... 106 



