90 



"When a condenser is seen to contain sufficient camphor, it 

 should be opened and the camphor carefully scraped out, every 

 precaution being taken to keep it free from dirt, or fragments of 

 any description; otherwise redistillation would be necessary if 

 the best price is to be obtained. A wooden scraper should be 

 used, contact with metal being avoided as far as possible, while in 

 the moist condition. The camphor should be placed in a well- 

 made box like a tea-chest having a perforated false bottom 

 i inches or 5 inches from the actual bottom and the top perfectly 

 closed. In a few days, most of the oil will have drained into the 

 lower portion of the box which should be zinc-lined and the dry 

 camphor can be removed and carefully packed in zinc-lined cases 

 for despatch. 



" By reducing the camphor-oil to a low temperature fully 50 to 

 60 per cent, of solid camphor separates out and can be removed 

 with a cloth strainer and well drained, the temperature being kept 

 as low as possible, while the excess of oil is draining away. 



" Should any of the camphor be accidentally discoloured, it 

 should be thrown back into the still with a subsequent charge of 

 prunings for redistillation. The question of purification by sub- 

 limation, redistillation of the oil for the production of safrol, 

 white oil and other products will be fully gone into in the 

 circular previously referred to and need not be discussed here. 

 The chief uses of camphor are for the manufacture of celluloid, 

 smokeless explosives, fireworks, &c, and medicinally in the 

 treatment of influenza, dysentery and cholera. For the latter 

 disease, it was used most successfully in Naples in l&A, all the 

 cases treated recovering, and it was employed with equal success 

 in Liverpool in 1866. Any outbreak of inlluenza increases 

 consumption at once, but the chief demand is for the manufacture 

 of smokeless powders and celluloid ; it is also said to be employed 

 in one of the numerous rubber substitutes now manufactured." 



XVIII.-CHLAMYDITES : A NEW GENUS OF 



COMPOSITAE. 



J. R. Drummond. 



Char. gen.—Herba demissa, lanata, scapigera ; folia, plerumqu 

 radxcaha, parva. Capitula heterogama, radlata homochroma ( ? ) 



flosculi 

 sub-acuto 



formes 



«*nt£2, ahbus * cut a ls ' lobul ° quoque sub apicem villorum cane- 

 pZ lla^„ Cr i flosculum supereminante exf rne ornato. 



bblmff il t C ° nnat ? involucrum poculiforme 5-vel pluri- 



ShTZcU^T^ ^ theraru,n bas * 8 rotundatae **&»' 

 linlria sub fl ° Uvata d ^ ne acum ^ata, papillosa. Achaenta 



-Sa^ZS baS e ° mnia "^ ' ^ "" 



Observ. 



Heterochromearu 



promoter nnn.n iJ uu " tnDUS Heterochromearu m " noai° 



prompter nonnullas species in regione Indo-Sinensi nuper detectaa 



