On transversely striated muscular fiber in Gasteropoda. 123 



Graham was not a vokiminous writer. Ilis seieiitifK' paiKTs 

 were all very brief, but compreheusive, aiul his "Klmunts of 

 Chemistry" was his only large work. This was uii aihnirahlo 

 exposition of chemical physics, as well as ot ])\ii\' (.■hcmi.-irv. 

 and gave a more philosophical account of the theory of the uah 

 vanic battery than had previously appeared. Our late ass«i- 



tion of the value of his labors. His uuiabershi}) was sou,i^ht ly 

 almost all the chief scientific societies of the world, and he on 

 joyed to a high degree the confidence and esteem oi' hi- asso- 

 ciates. Indeed, he was singularly elevated abo\e the I'ony 

 jealousies and belittling quarrels, which so often mar thr l>eauiy 

 of a student's life, while the great loveliness and kind Hi us- of 

 his nature closely endeared him to his friends. He was no\ oi- 

 married, keeping house with a sister at No. 4 (iordou S.^iarr. 

 where he dispensed a liberal hospitality, which has heon cnj. .vod 

 bymany of our scientific countrjmienVho have visited Lon'ion 

 during the last twenty years. 



In concluding, we must not forget to inentioii that most ymia! 

 trait of Graham's character, his sympatliy with yonn,u nion. 

 which gave him great influence as a teacher in the Colhrv wifli 

 which he was long associated. There are many now i-roniinent 

 in the scientific world who have found in his cneourugement 

 the stronarest inc( 



In studying the radula of a species of Acmaa (probably 

 A. Borneensis Eve), obtained by Prof. A. S. Bickmore at Am- 

 boyna, I noticed, on placing the structure under a power of 

 100 diameters, that certain of the muscular fibei-s which adhered 

 to it, when torn from the buccal mass, had a different appear- 

 ance from the others. On increasing the power to some 800 

 diameters, it was at once evident that the different aspect of 

 these fasciculi was caused by fine, but clearly defined, trans- 

 verse striation. Suspecting that it was an optical delusion, 

 caused by a very regular arrangement of the nuclei of the 

 fibres, I subjected the muscle to various teste and to still higher 

 magnifying powers. I also introduced under the same glass, 

 some of the voluntary dorsal muscles of a small crustacean. 



nparison. The structure of the ulti 

 appeared to be similar. These seemed t- 

 homogeneous tube or cylindrical band of 



