376 



Index 



Marchal, P., 222 ff., 254 



Margelis, 192 



Mass of chromatin and of cyto- 

 plasm, 1 86 



Mast, 269, 277 



Mathews, A. P., 107, 363 



Matthaei, G. L. C., 302 



Maxwell, S. S., 270, 274, 277 



McClendon, J. F., 122, 322 



McClung, C. E., 68, 198 ff., 237 



Megusar, 340 



Meignon, 217 



Meisenheimer, 225 



Meltzer, S. J., 315 



Membrane formation, 86 ff.; arti- 

 ficial, 98 ff. 



Mendel, G., 23, 229 ff. 



Mendelian characters, and evolu- 

 tion, 70, 348; and internal se- 

 cretions, 243, 348; and enzymes, 

 247, 248, 249 



Mendelian, factors of heredity, 

 4 ff., 68, 151 ff.; mutation, 66; 

 dominant, 90; segregation, 

 229 ff. See also Non-Mendelian 

 inheritance. 



Mendelian heredity, mechanism 

 of, 229 ff.; and chromosomes, 

 233 ff.; and hormones, 245 ff., 

 348 ; and enzymes, 247 ff. 



Menidia, 51, 321, 323 



Merogony, 120, 126, 186 



Merrifield, 303 



Mesenchyme formation, 130 ff. 



Metamorphosis of tadpoles in- 

 duced by thyroid, 155, 156 



Metchnikoff, 361 ff., 367 ff. 



Michaelis, L., 62, 317 



Micrococcus prodigiosus, 334 



Micromeres, 132 ff. 



Minot, 362 



Moenkhaus, W. J., 51, 344 



Molisch, 20 



Montgomery, 199, 234 



Moore, A. R., 50, 247 ff., 280 



Morgan, T. H., 46, 68, 89 ff., 95, 

 116, 126, 134, 141 ff., 173, 175, 

 184, 204 ff., 229 ff., 241 ff., 244, 



347 



Morse, M., 156, 353 

 Morton, J. J., 44 

 Moss, W. L., 67 



Muller, H. J., 229, 231 ff. 

 Murphy, J. B., 44 ff. 

 Mutation, 6, 42, 243; and evolu- 

 tion, 347, 348 

 Myers, 55 



Nathanson, 19 



Natural death, 361 ff. 



Neilson, no 



Newman, 344 



Newton's Law, 253 



Nitrifying bacteria, 1 6 ff. 



Non-Mendelian inheritance, genus 

 and species characters, 70, 151, 

 251; rate of segmentation, 

 246; first development, 247 



Northrop, 366 



NostocacecE, 21 



Nussbaum, M., 149 



Nuttall, G. H. P., 56 ff. 



Ocneria dispar, 225 



(Enotherus, 369 



Onslow, H., 249 



Organ-forming substances or 

 hormones in regeneration, 1 54 ff . ; 

 causing metamorphosis in tad- 

 poles, 155-157; decidua forma- 

 tion, 158; development of milk 

 glands, 158; Sachs's theory of, 



159 



Organisms from eggs, 128 ff. 



Origin of life, 14 ff., 33 ff. 



Osborne, 23 



Osterhout, W. J. V., 312 



Ostwald, Wo., 29, 305, 312 



Oudemans, 225 



Overton, 123 



Palcemon, 193 



Paloemonetas, 193; geotropism of, 



270 



Palinurus, 193 

 Pandorina, 277 

 Parker, G. H., 264, 269 

 Parthenogenesis, artificial, 95 ff.; 



"spontaneous," 107 

 Pasteur, 14 ff., 24, 33, 38 

 Patten, B., 264 ff 

 Pauli, W., 289 

 Pavy, 350 

 Payne, F., 322 



