[ iv ] 



that list have been made good, but it has not been judged necessary to specify 

 them here. Generally it will be understood that when the title of a paper is not 

 to be found under an author's name, the volume containing it was not accessible 

 to the compilers of the Catalogue. 



As the value of this work has been generally recognised, and as, in con- 

 sequence of the lapse of time since 1863, the want of a continuation has already 

 been felt, the Royal Society have resolved to continue the Catalogue of Scientific 

 Papers to the end of the year 1873. 



