462 



INDEX. 



Sertularella polyzoniax, D.M.S., 212 

 Siplions in Polysiphonia, on the de- 

 velopment of the, D.M.S., 345 

 Spermatozooids of Limulus, motility 



of, 453 

 Spine of Amblypneustes ovum, D.M.S,, 



212 



„ further remarks on, D.M.S., 213 



„ Diadema mexicanum, D.M.S., 



104 



„ Echinostrephtcs molare, D.M.S., 



106 



„ Echinus acutus, D.M.S., 349 



„ Mespilia globulus, section of, 



shown, D.M.S., 348 



„ Toxopneustes variegatus, D.M.S., 



346 

 Spurious isinglass, note on, D.M.S., 



103 

 Stauroneis, new species of, D.M.S., 



107 

 Stauroneis Mackintoshii, D.M.S., 107 

 Staurastrum turgescens, zygospore of, 



D.M.S., 105 

 Slysanus stemonitis, new variety of, 



shown, D.M.S., 347 

 Suspensor, on the homologies of the, 



by Sidney H. Vines (with Plate v), 



58 



Tei>eostean fishes, a 'contribution to 

 the history of the embryonic de- 

 velopment of the, by E. van Bene- 

 deu (with Plate iv), 41 



Tetraspores in Polysiphonia, on the 



development of, D.M.S., 350 

 Theodor Schwann, celebration in 



honour of, 211 

 Thymus, on the concentric bodies of 



the, by Dr. W. Afauassiew, 195 

 Tomes (Charles S.) on the hinged 



teeth of the common pike (with 



Plate i), 1 

 Toxopneustes variegatuSy structure of 



spme of, D.M.S., 346 



Undesckibed Monad-form, D.M.S., 

 213 



Verrick's one-sixth, D.M.S., 349 

 Vines (Sidney H.) on the homologies 

 of the suspensor (with Plate v), 58 

 „ recent researches into the na- 

 ture of lichens (with Plate ix), 144 

 „ the reproduction of lichens and 

 the sexuality of the Ascomycetes 

 (with Plate xx), 438 



Whitman (Charles Otis), the embry- 

 ology of Clepsine (with Plates xii — 

 xv), 215 



Zeiss's objectives, 211 

 Zvgospore of Staurastrum turgeseenSy 

 'D.M.S., 105 



FEIXXED BY J. E. ADLABD, BABTUOLOMEW CLOBB. 



