GENERAL INDEX 



TO 



THE QUARTERLY JOURNAL 



AND 



PROCEEDINGS OF THE GEOLOGICAL SOCIETr 



Acanthopleuroceras rursicosta, nom. 



nov., 286-87 & pi. xxvi, 316. 

 Aclisina (& Aclisoides), notes on, w. 



table illustr. their distribution in 



Scotland, 59-68. 

 Aclisina acicxilata. 77 & pi. yI. 



ashtonensis, 78 & pi. vi. 



attenuata, 70. 



costatula & var. duhia, 79. 



delicatida, sp. nov., 71 & pi. v. 



elegant'ula, 74-75 & pi. vi. 



elongata, 72-73 & pi. v ; var, 



cingulata, 73 &pl. v; rar.varians, 



73 '& pi. V. 



faber, sp. nov., 70 & pi. v. 



grantonensis, 76. 



micula, sp. nov., 71 & pi. v. 



(?J midtivolva, sp. nov., 77-78 



& pi. vi. 



parvula, 75. 



• loolygyra, 73-74. 



• ■ pidchra, 68 & pi. v ; var. exigua, 



nom. nov., 68-69 ; var. intermedia, 



69. 



pusilla, 72 & pi. V. 



qiradrata, 76. 



similis, 71-72 & pi. v. 



stnafissima, 75-76 & pi. vi. 



snhelongata, sp. nov., 74 & pi. 



vi. 



(?) sulcafula, 74. 



tennistriata, 76 & pi. xi. 



terehra, 75. 



venusfa, sp. nov., 69 & pi. v. 



Aclisoides f?J armstrongiana, 82. 



striatula, 78-81 & pi. vi. 



Albitization of rocks, 23-24 

 Alkalinity, law of increasing-, in conn. 



w. maginatic differentiation, Ixix et 



seqq. 

 Ammonite septum, morphology & 



development of the, 26-58 figs. & 



pis. ii-iv. 

 Ammonites hirchii, 319-20. 



hrooJci, 321. 



■ hucMandi, 319. 



conybeari, 321. 



midticostatus, 321-22. 



ohtiisus, 321. 



■ rotiformis, 321. 



sauzeamis, 321. 



tuvneri, 321. 



Analyses, chemical, of spilitic lavas, 



&c., 21-22. 

 Anatase in Bunter Pebble-Beds, 330. 

 Anisocardia xmrvida, sp. nov., 213 & 



pi. xxii. 

 Annual General Meeting, xiii et seqq. 

 Anodoiitoplwra angidata, sp. nov., 



208 & pi. xxi. 



— edmondiifonnis, sp. nov., 208— 



209 & pi. xxi. 



oralis, sp. nov., 208 & pi. xxi. 



Arcestes cf. rhseticns, 182-83 &pl. xvii. 



— j— sp. (Carnic). 182. 



Archffian {& Cambrian) igneous rocks 



of Britain, & their richness in 



sodic felspars, Ixx-lxxiii. 

 Arietites turgescens, sp. nov., 296-98 



& pis. xxix-xxxi, 316. 

 Arnioceras anageneticum, sp. nov., 



300-301 & pi. xxxi, 316. 

 flavum., nom. nov., 298-300 & 



pi. xxxi, 316. 

 fortidiatum, sp. nov., 301-302, 



& pis. xxviii, xxxi, 316 



