TEA SUBSTITUTES OF MAURITIUS. lid 



no machinery, the rudest and simplest forms of tools might be used, and 

 the seed scattered by the hand ; but great improvements had been effected 

 by machinery. The Professor then directed the attention of his audience 

 to some of the students who had been at this college, and who had dis- 

 tinguished themselves by their works in their occupations in every-day life. 

 They were spread over all parts of the earth — some were in India, and 

 some in China. One of them was Mr. Thomas Winter, an engineer and 

 naval architect, who came up to the college from Scotland, and afterwards 

 highly distinguished himself by scientific investigations in India, especially 

 on the rivers, for which he invented several kinds of boats (models, draw- 

 ings, and sections of the boats were explained by the Professor). Another 

 gentleman who distinguished himself at the college, and who was now 

 carrying on a large business in Yorkshire, was Mr. Charles Cochran, who 

 was a senior scholar, and who had become eminent by inventions connected 

 with heating apparatus used in the manufacture of glass. There were many 

 other gentlemen brought up at the college whom he might mention as 

 having distinguished themselves in their various avocations ; amongst 

 others, Mr. Mawdsley, Mr. Vaukes. Mr. White, Mr. W. Cochran, Mr. 

 Hatcher, Mr. Edward Chance, Mr. W. Purges (the architect of the Memo- 

 rial Church at Constantinople), Mr. Miller (who had gone to Sydney), Mr. 

 Fox, Mr. Henry Worms, Mr. W. M'Kean, &c. Theoretical knowledge 

 was not sufficient in the study of the applied sciences ; there should be 

 practical knowledge, which could only be obtained in the laboratory and 

 the workshop. The Professor then spoke in favour of cleanliness in the 

 making of experiments, and in the general practice of the laboratory and 

 workshop. After recommending as a class-book to the students who 

 attended his lectures, his predecessor, Mr. Goodeve's, book on " The 

 Elements of Mechanism," he stated that Mr. Goodeve had received a 

 Government appointment at Woolwich, where he wished him the enjoy- 

 ment of every prosperity and success. The Professor then passed a warm 

 eulogium on the late Professor Cowper (one of whose pupils he was, and 

 whose mode of teaching he should endeavour to follow), who would be long 

 remembered for his talent and amiable qualities ; and spoke in terms of 

 panegyric of the late Principal of the College, Dr. Lonsdale, now Bishop 

 of Lichfield ; of his successor, the present Principal, Dr. Jelf, and other 

 professors connected with the college. At the close of his lecture, which 

 was illustrated by many drawings and models, the Professor w r as warmly 

 applauded. 



TEA SUBSTITUTES OF MAURITIUS. 



BY M. LOUIS BOUTON, OF POET LOUIS, MAURITIUS. 



Culen, or Koulin, the striped-flowered psoralea {Psoralea glandulosci), 

 was originally introduced into the Mauritius from Chili, where it is indi- 

 genous. The Rev. Father Feuillee was the first who made known this 



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