BOTANICAL NEWS. 215 
He asserts that my * observations* are not confirmed by other n 
This is not quite true, for I see them approved of on all sides, and I a 
dent Dr. Lindsay's authority will not suffice to invalidate them 
The colouring effects produced by chloride of limet are Man rally very evi- 
bilicarie for instance, the erythrinic reaction is typically weak ; in which case 
this weakness is itself characteristic. 
The other newly proposed agent, hydrate of potash (hydras kalicus or kali 
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actions of Jecanoric acid omer and redi are, anaray speaking, very clear (in 
Parmeliei, SES €i, etc.) ; thos acid are still more so. 
e instrument I use for aerae the reagonin is a goosequill sharpened into 
a SEM: m with this I touch but a very small extent either of the cortical layer 
case : Os, qui erroribus sunt dediti, nulla castigatio acrior npe potest 
quam si errores suos conservant et in falsis Kap rebua permane 
etc. 
Paris, June, 1869. We. NYLANDER, M.D. 
BOTANICAL NEWS. 
The Trustees of the British M h tablished an additional assistant- 
ship in the Botanical Department, and we congratulate them on the appoint- 
ment of so able and promising a botanist as Dr. Henry Trimen to the new 
office. He entered on his duties early in May last. 
Dr. Seemann returned to England on the 12th of last month, T an ab- 
sence of several months in Central America and the Isthmus of Pana: 
The ‘ Gardeners’ Chronicle’ is authorized to contradict the ai: that it 
* They are entirely independent of those of the Rev. W. A. Leighton, who 
has made a series of applications of gi — to Cladoniei. 
+ This i ee the pee of unit us Knox = Latin hypoehloris calcieus, 
€). 
EU Dr. Dade me has made sy a inbecsutocnl preparatio 
of doubt value. Nor are tincture of iodine rend its aqueous ogee Fientical 
their reactions. ‘Dr. indsay is consequently wrong in saying, “I 
ras not aware of any advantage this — ee aee aqueous one vith the addi- 
lon of iodide of potassium) “ possesses o offici incture of iodine, 
diluted with water to such extent that the liquid dob only a pale sherry colour." 
