Royal Society. 1S9 



^ay that the work has been so executed ; and that its value has 

 been greatlv enhanced by the f'ac similes and embellishments 

 with which many of the descriptions of scarce works have been 

 illustrated. The first volume is confined to block books, theology, 

 and anciejit classics: the second contains ancient classics: the 

 THIRD, collections ; lexicography ; miscellaneous authors. The 

 FOURTH will contain more mi-:cellaneous authors; books printed 

 in the Italian language ; books printed by IViUiam Carton ; 

 hooks printed in the Abbey of St. Alban's ; books printed by 

 IVijnkyn de IVorde, and by Pynson ; supplement ; emenda- 

 tions; index of authors, and of editions described ; of printers, 

 and of editions, &c. 



This work, from the press of Mr. Bulmer, may he considered 

 as a most interesting specimen of typography. To notice that 

 it has been printed with great care, and that the press-work is, 

 well executed, would be no more than saying that it came from 

 the Shakspeare press. The singular nature of the materials, 

 the numerous fac similes (some of them embracing three or 

 four colours), and the diversity of letter and arrangement 

 often required in the same page — all required a felicity of ex- 

 ecution more to be d :sired than hoped for. But ?vlr. Bulmkr has 

 vanquished every difficulty, and produced a work which Avill 

 deservedly be ranked among the most singular curiosities of 

 that wonderful art which it illustrates. 



XXV. Proceedings of Learned Societies. 



KOYAL SOCIETY. 



Jl o correct an inaccuracy in our last Report, we insert the fol- 

 lowing letter : 



"Tower, Aiip;nsf 1;3. 1814. 



<' Sir, — I HAVE read in the last number of your Journal, the 

 abstract which you have given to the public of the contents of 

 a paper of mine lately read before the Royal Society, which 

 abstract I find to be remarkably erroneous. I conceive there- 

 fore that, as vou must naturally wish to correct any wrong in- 

 formation which vou may have accidentally given, you will be 

 glad to receive from me the means of sa doing ; for which reason 

 I point out to you the following errors. 



" The first is in the title given to my paper : it is not ' On the 

 triple salts called pnissiates,' but ' On the salts called triple 

 prussiatcs, and on acids formed by the union of certain bodies 

 with the elements of the prussic acid.' 



" Tlie next is in the assertion that ' I derived my facts chiefly 

 <^rom IVoa'-t's txperiments ;' whereas they are deduced almost 



entirely 



