Of a New Hygrometer. 1 1 1 



wind alone may be looked for ; whereas, if the Hygrometer 

 at the same time approaches to zero, or the point of 

 saturation, rain, or rain with wind, may be expected to 

 follow. 



Its adaptation as a weather-glass, hence its great utility 

 to the agriculturist and invalid, will form the subject of a 

 future communication.''*' 



Sir, I am yours with sincere esteem, 



JOHN ABRAHAM MASON. 



18, Claremont Place, Pentonville, 

 December 9th, 1835. 



To Dr. R. D. Thomson. 



Article IV. 



Catalogue of Plants collected at Bombay. 

 By John Graham, Esq. 



(Continued from page 40.^ 



59. Barleria pronilis 7 ^.^^^^^ ^^ ^^^^ ,^^j^ 

 oO. ,, LongijoLia, ) 



61. ,, cristataf. 



62. 'Bomhsix pentandrum. 



63. ,, heptaphyllum. The first I have only seen in 

 gardens ; the latter is a very common tree. Both are de- 

 ciduous, and the numerous large glowing red flowers of the 

 latter make a very showy appearance when the tree is 

 totally destitute of leaves. February and March are its 

 flowering months. The cotton, I believe, which it pro- 

 duces is of no value. 



- 64. Butea frondosa. The immense clusters of red 

 coloured pea flowers which this tree produces, have also 

 a very showy appearance — they come before the leaves, — 

 independent of the flowers, the tree has nothing to recom- 



* Makers: Mr. Squire, 277, Oxford Street; Mr. Cary, 181, Strand, London ; 

 and Mr. William McDowall, 18, Infirmary Street, Edinburgh. 



t I have picked specimens of this plant in Dane's Island, Whampoa, China. 

 A very good figure of it is given in Osbeck's voyage to China — a work which 

 those who write on the botany of that country should not fail to consult. — Edit. 



