283 



Troop-ship, Steel, 33. 



Type-composing Machinery, 103. 



Vacua, Indications of, 159. 



Vesuvius, Eruption of, 255. 



Vision and Sound, 152. 



Wallieh, Dr., on Animal Life at vast 



Sea-depths, 238. 

 Warming St. Paul's Cathedral, IOC. 

 Washing Machines, New, 111. 

 Water-blast for Steam-boilers, 22. 

 Water contaminated by Lead, 177. 

 Water-Gas in France, 85. 

 Water-Meters, Improved, 92. 

 Water Purifier, Patent, 111. 

 Waters of London, Spectrum- Analysis 



of, 185. 

 AS eaving by Magneto-Electricity, 108. 

 Wellingtouia Gigantea, the, 23-1. 



AYheatstone's new Printing Telegraph, 



166. 

 Whitworth Gun, Great Experiments 



with, 52. 

 Whitworth, Mr., on his Gun, 54. 

 Whitworth on Iron-cased Ships of 



War, 30. 

 Whitworth Rifle, the, 51. 

 Whitworth's Rifled Cannon, 17. 

 Wilkinson, Sir G., on Remaius of Man 



in Caves, 214. 

 Wind Engines, 92. 

 Wrottealey, Lord, hi9 Address to the> 



British Association at Oxford, Illy, 



■I :«, 267. 

 Zeiodelite, New Composition, 68. 

 Zoology, Methods in, 21 1. 

 Zopissa Indurating Process, 100, 101 . 



ARSENIC IN PAPER-HANGINGS. 



We quote the following well-attested instance from the Chemical 

 News : — * 



A Mr. T. King, living at Highbury, had a little son throe ) - ears and a-half old, ami 

 a daughter stillyounger. The breakfast-room was hung with green Hook puer, and 

 in this same room was a cupboard in which iheykept toys and other things. A 

 few days previously they cleared out this cupboard, and the little boy was noticed 

 to put a piece of lace he found there into his mouth and suck it. Not long after 

 this he was sick, unable to eat, and speedily sank into a semi-comatose condition, 

 which was only broken occasionally by violent convulsions, and he died in about 

 thirty-six hours. In the meantime his sister had been seized with siniib* -yinp- 

 toms : and as this was the second time they had been attacked simultaneously, 

 it naturally occurred to the doctor that the cause of decease was not a natural 

 one ; he, therefore, sent portions of the body to Dr. Letheby, to be analyzed ; 

 and the result was, that he discovered arsenic in the stomach, the liver, and the 

 evacuations. A piece of the green paper was also sent to him to be tested, and 

 he found that one-third of its weight was arscnite of copper. An inquest was held 

 on the body, and the verdict, returned by the jury was, " That Clarenee William 

 King had been poisoned by the inhalation of arsenical fumes which had escaped 

 from the green paper of a certain sitting-room.' The fact is, Scheclc 'l grOBB, as 

 the arscnite of copper is termed, is not only aheap, but produoes a green of pecu- 

 liar br:lliancy. The public, for the most part, knowing nothing of the danger of 

 covering their rooms with such paper, give it the preference orer that of a duller 

 tint ; oonaeqnently there is a great demand tor this paper, which, so long as it 

 lasts, the manufacturer willoontimie to supply, utterly regardless of results. 



* This excellent journal has been enlarged and otherwise improved, M as more 



efficiently to meet the requirements of a weakly chemical newspaper. We are 



f lad to see the Boyal Institution 1 tares, by Faraday ami others, at the Boral 

 ostitutionj are to !„• r.-port.-.i in this impr o ved series published by Qrimn, 

 Holm, and Co., 8tationers' Hall Court. 



