INDEX 



287 



245 ; on death of plants above zero, 

 233 ; on influence of thawing, 235. 



Moll, 7. 



Molliard, 171. 



Monas Okenti, rapid response of, to light, 

 96. 



Montemartini, 7, 12, 215. 



Morgen, on influence of light on growth, 



97- 



Morkowine, 264. 



Mortierella, influence of moisture on forma- 

 tion of sporangia by, 123. 



Mosaic work in tissues, 149. 



Mosses, 92 ; resistance of, to desiccation, 

 255 ; to light, 249. 



Mosso, 261. 



Mottier, 40, 108; on influence of centrifugal 

 force on growth, no. 



Moulds, influence of light on, 90. 



Mousson, on influence of capillarity on 

 freezing, 244. 



Mucor, apical growth of hypha of, 5 ; cell- 

 segmentation in, 39 ; decrease in size 

 of cells of, 38 ; heredity in, 195 ; influ- 

 ence of air on reproduction of, 198 ; 

 intermediate character of, 6 ; non-for- 

 mation of sporangia under water, 121 ; 

 M. flavidus, influence of light on for- 

 mation of sporangia in, 90 ; M. mucedo, 

 action of CuSO 4 on, 260; growth of 

 sporangial stalk of, 1 1 ; influence of 

 cold on, 238 ; M. racemosus, influence 

 of light on spore-formation in, 90 ; 

 temperature limits for growth of, 76 ; 

 M. stolonifer, formation of attaching 

 organs of, 130; heat-rigor in, 225. 



Mucor-yeast, condition for formation of, 

 117. 



Miiller (C.), 56 ; on growth of cell-walls, 30. 



(Fr.), 208, 210, 213. 



(H.), 233; on influence of light on growth 



of roots, 96. 



- (H. C), 30. 

 - (K.), 169- 



- (N. J. C.), 7, 64, 66, 80, 84, 93, 158, 209, 



211 ; on compression of pith, 64. 



- (O.), 32, 178. 



Miiller-Hetlingen, on influence of electricity 

 on growth, 106. 



Miiller-Thurgau, 67, 164, 173,209,210,212, 

 233, 235, 236, 237, 239, 240, 242, 243, 

 245 ; on freezing of apples, 241 ; on 

 freezing-point of plants, 242 ; on influ- 

 ence of cold, 245 ; on resting periods, 

 215. 



Miinter, 9. 



Musa, 1 8. 



Mustel, 206. 



Mycocecidia, 171. 



Myriophyllum, influence of light on growth 

 ot, 93- 



Myxomycetes, influence of concentration 

 on, 121 ; freezing on, 241. 



Nageli, 3, 5, 9, 30, 32, 33, 35, 39, 58, 64, 66, 

 86, 89, 131, 168, 182, 191, 229, 234, 244; 

 on growth, 29; on idioplasma, 188 ; 

 on mechanics of tissues, 59; on resis- 

 tance of bacteria to heat, 228. 



and Schwendener, 63, 66, 244. 



Nathansohn, 9, 13, 32, 35, 46 ; on amitosis, 

 43 ; on parthenogenesis in Marsilea, 

 147- 



Nectria cinnabarina, influence of food on 

 conidial formation of, 116. 



Nelumbiuni) 18 ; vitality of seeds of, 254. 



Nematus capreae, galls of, 1 72. 



Nemec, 43 ; on nerve fibrillae, 183. 



Nencki. on action of tox-albumins, 268. 



Neomeris Kelleri, growth of cell-wall of, 

 30. 



Neottia Nidus-avis^ conversion of root-apex 

 into shoot-apex, 140. 



Nepenthes, influence of contact on forma- 

 tion of pitchers of, 130. 



Nerve fibrillae in plants, 183. 



Newcombe, 32, 34, 44, 125, 128, 223. 



Nicotiana, influence of light on germination 

 of seeds of, 92. 



Nicotra, 57. 



Nitella, fate of segment-cells in, 9 ; influ- 

 ence of plasmolysis on, 257 ; strains in 

 cell- wall of, 65 ; transmission of stimuli 

 in, 1 86; unequal growth of segment- 

 cells of, 7. 



Nitophyllum peltatum, signs of death in, 



235- 



Nitrifying organisms, influence of peptone, 

 &c., on, 112. 



Nobbe, 84, 87, 93, 107, 114, 211, 229, 230, 

 252, 254. 



Nordlinger, 109, 161. 



Noll, 9, 25, 29, 33, 78, 94, 154, 167, 178, 

 238 ; on growth by apposition, 31 ; 

 of cell- walls of Caulerpa, 30 ; on influ- 

 ence of pressure on development of 

 root-primordia, 132 ; on inversion, 156. 



Nordhausen, 10, 13, 134, 253. 



Nostoc, resistance of, to desiccation, 255. 



Nuclear division, persistence of, in non- 

 dividing cells, 39 ; relation of, to cell- 

 division, 40. 



Nucleus, importance of, in heredity, 188; 

 influence of, on growth of cell- wall, 33 ; 

 poisons on, 267 ; size of, 40. 



Nuphar luteum, dorsiventrality of rhizome 

 of, 154. 



Nutrient medium, influence of, on resistance 

 to heat, 228, 229. 



Nutrition, influence of, on development of 

 reproductive organs, 198. 



Nymphaea, production of air-spaces in, 45. 



Oak, galls of, 173; leaf- fall in, 217; resting 

 period of, 206. 



Oedogonium, 19, 28 ; growth of, 31 ; influ- 

 ence of change of temperature on, 82 ; 



