218 INDEX. 



Zaire (or Congo}, the river, conjectures concerning the course of, 

 V. 130. Objections to its supposed identity with the Niger, 

 158. Notice of Captain Tuckey's expedition to explore this 

 river, 158 

 Zamboni's dry galvanic pile, experiments on, i. 161 



_- new arrangement of, ii. 177. viii. 



177. XX. 169 

 Zante (island), account of an earthquake in, xii. 341. xiii. 232 

 Zea (Don Francisco Antonio), on the culture of the arracacha, 



X. 27. On a new species of Indian corn raised in France, ib. 

 Zecchinelli (M.) on the use of the right hand in preference to 



the left, ii. 423 

 Zeine of Maize, properties of, xiii. 402 



Zeise (Dr.) on a new class of compounds of sulphur, xiv. 433 

 on the hydroxanthic acid and some of its compounds, xv. 304 



— experiments of, on the re-action of sulphuret of carbon and 

 ammonia, and on the combinations thence resulting, xviii. 149 



Zenith, account of a coloured circle round the, xi. 40 

 Zimoma, properties of, ix. 401 



Zinc, experiments on the muriate of, vi. 159 ; and on the ben- 

 zoate of, 160 



ores of, analysis of, ix. 191 



. • experiments on the sulphuret of, xv. 150 



alloys of, with iron, xvi. 383. Cadmium obtained from zinc 



works, ib. 



— properties of an amalgam of, xviii. 181 

 Zirconia, discovery of, v. 378. 



— process for procuring, x. 1S3 



Zirconium, process for obtaining, xviii. 157 

 Zodiac of Dendera, remarks on, xiv. 402 

 Zoisit, analysis of, from Carinthia, xii. 268 

 Zoological geography, observations on, ii. 386 



Society, prospectus and plan of, xix. 369 



Zoology, miscellaneous intelligence concerning, vi . 162 

 Zoophytic animals, remarks on, v. 374 



THE END. 



