INDEX. 



277 



Prothallus, 60, 67 



Protococcus pluvialis, 1 1 ; Labora- 

 tory work, 14 



Protoplasmic movements in vege- 

 table cells, 45, 52 



Protopodite, 131, 142 



Pseudopodia, 17, 21 



Pteris aquilina, 55; Laboratory 

 work, 62 



Pterygoid bone, 219 



Pterygoid rod, 171 



Pulmocutaneous artery, 176, 203, 



237 

 Pulmonary, artery, 176, 178 ; vein, 



175, 180,238 

 Putrefaction, 20 

 Pylangium, 176 



Q- 



QUADRATE bone, 219 

 Quadrato-jugal bone, 219 



R. 



RACHIS, 55 



Radicle, 71, 86 



Radius, 223 



Rana temporaria andR. escuknta, 

 159; Laboratory work, 196 



Recti muscles, 194 



Rectum, of Anodonta, no, i<22 ; 

 of Crayfish, 133, 148; of Frog, 

 173, 204 ; of Lobster, 133, 148 



Renal veins, 1 79 



Renal portal veins, 235, 236 



Respiratory organs, of Anodonta, 

 118; of Crayfish, 135, 144; of 

 Lobster, 135, 144; of Frog, 181 



Restiform bodies, 185 



Retina, 247, 258 



Retractor bulbi, 194 



Rhinal processes, 171 



Rhinencephalon, 239 



Rhizome, 55, 62 



Roots, of the spinal nerves, 192, 

 240 



Rootsheath, 72, 79 

 S. 



Saccharomyces cerevisia, i ; Labo- 

 ratory work, 6 



Sacculus, 194 



Sacrum, 214 



Scalariform ducts, 58, 65 



Scaphognathite, 128, 153 



Scapular vein, 1 79 



Sciatic, nerve, 193; vein, 179, 



2 35 



Sclerenchyma, 57, 63, 64, 65 



Sclerotic, 194, 245 



Secondary capitula, 45 



Secundine, 85 



Seed, 71, 86 



Seed-leaves, 71, 86 



Sense organs, of Anodonta, 112, 

 121 ; of Crayfish, 137, 153; of 

 Frog, 193, 244; of Lobster, 



J37, 153 

 Sepals,. 84 



Septum narium, 1 70, 249 

 SexuaL organs, of Anodonta, 112, 



123; of Bean, 70, 84; of Chara, 



45, 51; of Crayfish, 139, 146; 



of Fern, 59, 66; of Frog, 175, 



198; of Hydra, 96, 102; of 



Lobster, 139, 146 

 Shell, of Anodonta, 124 

 Sinus venosus, 175, 201 

 Siphons, of Lamellibranchiata, 



109, 115 

 Skeleton, of Anodonta, 107, 124; 



of Crayfish, 127, 139; of Frog, 



169, 2ii ; of Lobster, 127, 139 

 Skull, 216 

 Somite, 128, 141 

 Sorus, 56, 66 

 Spermatozoa, of Anodonta, 112; 



of Crayfish, 147; of Frog, 183, 



207 ; of Lobster, 147 

 Spinal, column, 212; cord, 191, 



240, 242 ; nerves, 244 

 Spinous process, 213 

 Spiral vessels, 58, 65, 73, 80, 83 

 Spirillum volutans, 25, 29 

 Spirochcete, 29 

 Splanchnic nerve, 191 

 Spleen, 174, 205 

 Sporangium, of Chara, 43, 46 ; of 



Bracken, 56, 66 ; of Mucor, 34, 



