22 



nevertheless, Mhether in priuciple, manipulation, agencies, or results, 

 no two processes of the art can be found more widely independent of 

 each other, or more strictly bound within their respective limits, than 

 the Talbotype and the Collodion processes. 



TENTH ORDINARY MEETING. 



Royal Institution.- — March 5th, 1855. 

 JOSEPH DICKINSON, Esq., M.D., F.R.S., President, in the Chair. 



A recommendation from the Council, that reportei's be not admitted 

 during private business, was unanimously adopted. 



The corrected list of Corresponding Members was submitted and 

 unanimously adopted. 



Dr. Edw.vrds exhibited several specimens of brazing by the electro- 

 type process, and explained the method. 



The late long-continued and severe frost having led many to an 

 examination of thermometers, the Rev. Mr. Higgins, Dr. Dickinson, 

 and Dr. Thomson, urged the necessity of having standard instruments 

 more generally used, and correction tables applied, without which ther- 

 mometrical returns were worthless. 



Dr. Dickinson exhibited several celts found in an Irish bog. 



Mr. Hunter exhibited a curious foUo pamphlet of 1719, entitled 

 " Truth is but truth as it is timed ! or our Ministers' present measures 

 against the Muscovites vindicated by plain and obvious reasons." 



The Chairman read a letter which he had received from Mr. 

 Hutchinson, Surgeon to the S.S. Pleiad, giving some interesting 

 details respecting the exploring expedition. 



That vessel had penetrated into the country more than 250 miles 

 beyond the limits of former expeditions ; and it was found that the 

 Binuij, flowing through the rich kingdoms of Adamau and Kororoofa, 

 and crossed by Dr. Earth, was the parent of the Tshadda, which flows 

 into the Niger, and forms a confluence at Adda-kuda. The crew, con- 

 sisting of 66 men, 12 of them being Europeans, enjoyed good health 

 throughout the entire voyage from Fernando Po to Genowa, the river 

 port of Hamanua, and back, extending over four months. 



