86 



PROO. DUBLIN MICROSC. CLUB. 



N. 



Navicula, vli, 82 ; x, 302, 308 ; xi, 92 ; 

 xii, 80, 93 ; xiii, 101, 311 ; xiv, 

 213 ; XV, 100, 102, 201, 410, 414, 

 416; xvi, 104, 235; xviii, 346. 



Nematophycus, xiii, 312. 



Neomeris, xix, 439. 



Nephrocytium, vi, 70. 



Nitzschia, ix, 318; x, 90, 302. 



Nothoclcena, v, 169. 



Nymphsea, xvi, 109, 235, 238. 



0. 



Octaviana, xix, 439. 



Oedogonium, vi, 63, 67, 129 ; vii, 79 ; 



viii, 295 ; x, 203 ; xi, 93 ; xii, 313, 



422; XV, 102,413. 

 Olivine, xv, 411. 

 Olpidium, xvii, 463. 

 Oocystis, xi, 212 ; xvii, 104, 194. 

 Opal, xvii, 302. 

 Opercularia, v, 166. 

 Orthosira, xi, 321. 

 Ouramceba, xv, 203. 



Pachymatisma, ix, 318. 

 Palmoglcea, x, 202. 

 Pamphagus, xi, 101 ; xii, 195. 

 Pandanus, xii, 88; xv, 333. 

 Pelobius ; [?] xi, 101 ; xii, 94. 

 Peneus, calcification, xv, 205. 

 Penicilliam, abnormality, xvi, 106. 

 Penium, asteridia, vi, 58; viii, 68; ix, 



194, 423 ; xii, 86 ; xvi, 235. 

 Peridinium, xi, 211. 

 Pbacus, xi, 99 ; xii, 92. 

 Phalausterium, xi, 209 ; xii, 90, 95. 

 Philodina, xi, 210. 

 Piuguicula, viii, 121. 

 Pinnularia, vii, 85, 88; xi, 100; xiv, 



320; XV, 105. 

 Pinus, XV, 413; xvi, 104, 108, 414; 



xix, 441. 

 Placospongia, ix, 322. 

 Plagiophrys, xvi, 343. 

 Platycerium, xiv, 318. 

 Pleurococcus on flies, xiii, 316. 

 Pleuropbrys, xiii, 437. 

 Pleurosigma, ix, 424 ; x, 89 ; xii, 198. 

 Pleurotajnium, ix, 195 ; xi, 211 ; xii, 86. 

 Plumularia, xviii, 106. 

 Podisoma, xii, 89. 



Podophrya, xviii, 105. 



Podosphsera, viii, G6. 



Polyactls, xiv, 425. 



Polycbsetus, viii, 72 ; ix, 95. 



Polyedrium, xi, 96. 



Polyphemus, xii, 194. 



Polysiphonia, xv, 329 ; xvii, 305 ; xviii, 



345, 350 ; xix, 123. 

 Polytrypa, xix, 442. 

 Pompholyxophrys, xii, 195. 

 Porphyry, xiv, 317. 

 Primiila, pollen, viii, 67. 

 Protococcus, xii, 87. 

 Prototaxites, xi, 319. 

 Pucciuia, xv, 410 ; xvi, 343. 



Q. 



Quadrula, xvi, 337. 

 Quartzite, xix, 447. 

 Quartzrock, Shankill, xvi, 415. 

 Quillaria saponaria ; crystals in bark, 



V, 166. 

 Quinine chlorate, crystals, vii, 84. 



R. 



Raja, electric organ, xvii, 193. 



Raphidiophrys, vii, 179; xii, 195; xv, 

 331. 



Rhizopoda, various, vi, 185; vii, 173, 

 177, 296; Azores, xiv, 107; xv, 

 202; xvi, 337, 340, 343 ; xvii, 103. 



Rivularia, xviii, 348. 



Sagitta, xvii, 462. 



Salvinia, x, 201. 



Saprolegnia, vii, 80. 



Schizonema, xiii, 434. 



Schizostega, viii, 124. 



Sciadium, vi, 64. 



Scotophilus, XV, 104. 



Scytonema, v, 167, 189 ; vii, 231 ; [ ?] 



X, 202. 

 Selenastrum, xiii, 316. 

 Sertularella, xviii, 212. 

 Sirosiphon, ix, 200. 

 Slate, indurated, xv, 103. 

 Sorastrum, vii, 84. 

 Speira, xii, 312. 



Spbserozosma, vi, 274 ; ix, 198 ; xi, 92. 

 Sphagnum, xvi, 104. 

 Spirillum, movement, xi, 316. 



