INDEX. 



429 



Nerve-fibres, nou-mcdullated, by Dr. 

 E. Klein, 123 



Nerves of the blood-vessels ia the 

 frog's tongue, 123 



Nervous system, 181 



Noctiluea, notes on the structure of, 

 by Prof. Allman, 326 

 „ Cienkowski on, 411 



Nostoc, on a minute, wiih spores, 

 with a brief notice of recently pub- 

 lished observations on CoUema, &c., 

 by W. Archer, 367 



Notes and memoranda, 68, 158, 301 

 „ of a course of practical histo- 

 logy for medical students, given by 

 Prof. Eutherford, 1 



Object-glasses, immersion, for the 

 microscope, by Dr. Royston-Pigott, 

 111 



„ on the present con- 



dition of English, by Iloyston- 

 Pigott, 260 



,, on the differences 



between the nominal and solar 

 focal length of English, by Dr. 

 Royston-Pigott, 268' 



O'Meara, on some peculiar forms of 

 Navicula from Sulu Archipelago, 

 283 



„ recent researches on the Dia- 

 tomacea;, 210, 381 



Omentum and mediastinal pleura, 118 



Ord, W. M., M.B., a note of some 

 circumstances affecting the value of 

 glycerine in microscopy, 41 

 ,, „ molecular coalescence, 219 



Otocysts of molluscs, 417 



Packard, A. S., juu., M.D., ou the 



embryology of Chrysopa, 138 

 Panceri, luminous organs and light of 



the Pennatulas, 248 

 Parasitic organisms, occurrence of 



minute, as causes of abscess, 412 

 Parasite, a hydroid, from the eggs of 



the Sterlet {Acipe/iser rutheims), 



415 

 Pavesi, on the circulation of the blood 



in Pyrosoma, 275 

 Payne, J. P., ou students' microscopes, 



56 

 Pedalion mira, C. T. Hudson ou, 333 

 Pedalion, remarks on, by E. Ray 



Lankester, M.A., 338 



Pennatulse, luminous organs and liglit 

 of the, by Panceri, 248 



Pigott, on the present condition of 

 English object-glasses, 260 

 „ on the diffei'ences between the 

 nominal and solar focal length of 

 English object-glasses, 268 

 „ on a method of finding the 

 refractive index of glass, 273 

 „ ou immersion object-glasses, 

 111 



Porbeagle shark, 40 



Preparation of tissues, 5 



Pritchard, Urban, M.D., methods of 

 preparing the cochlea for micro- 

 scopical investigation, 380 



Proceedings of societies, 84, 189, 

 310 



Protoplasmic and fungus life, on the 

 relative power of various substances 

 in preventing putrefaction and the 

 development of, 403 



Pyrosoma, ou the circulation of the 

 blood in, by P. Pavesi, 275 



Queen-bee jelly, 320 



Radiolaman, new, from the coal 



measures, 397 



„ „ from Naples, 413 



„ „ freshwater, 413 



Refractive index, ou a method of 



finding, by Dr. Royston-Pigott, 



273 

 Reviews, 290 

 Rhizopod, radiolarian, on a, from the 



coal measures, 397 

 RoUestou, Dr., ou enamel in the teeth 



of mammals, 109 

 Rotatoria, 415 

 Rutherford, William, M.D., notes on 



a course of practical histology for 



medical students, 1 



Sanderson, Burdou, and Dr. Klein, on 



the anatomy of serous membranes, 



142 

 Sarcina ventriculi iu the blood, 163 

 Sauropsida, cesophagus of, 161 

 Schulze's memoir ou Cordylophora 



lacttstris, remarks on, by Professor 



Allman, 35 

 Screw pine, on the structure of the 



stem of, by Thiselton Dyer, 50 

 Sense, organs of, 184 



