LEAD. BERZELIUS. 79 



This is a range much in excess of eighty times that affect- 

 ing the determinations of Berzelius made from 1810 to 1814 

 on the carbonate and the oxide of lead. 



I trust that every young chemist will read the protest 

 against Clarke's garbling the record of Berzelius I have 

 published in my little book on " the False Atomic Weights 

 of the Smithsonian Institution," pages 28 to 30. 



They will, I am sure, agree with me in that protest 

 against the wilful and malicious defilement of the grand 

 work of Berzelius. 



It is nothing short of a disgrace that the highest scien- 

 tific officers of our government dare produce such totally 

 false statements of the record of Berzelius, and that such 

 disgraceful falsehoods are published with the endorsement 

 of the Secretary by the "Institution" founded for the 

 Increase and Diffusion of "Knowledge" among men, and 

 thus sent broadcast to chemists everywhere at the expense of 

 the people of the United States. 



D. Lead Oxide, Dry Way. Later Work. 



The work of Berzelius which we shall now consider is 

 referred to his Lehrbuch, last or fifth edition, volume III, p. 

 1218, by Clarke, and divided into two parts marked "earlier" 

 and "latest" results. The former comprise 6 deter .nina- 

 tions, the latter 3 determinations. 



Meyer and Seubert (p. 28) refer to the same " Lehrbuch " 

 and give the years of first publication as 1830 and 1845. 



Becker (p. 71) mentions " four nearly coincident experi- 

 ments" published in Poggendorff's Annalen for 1826, mean- 

 ing Pb =. 207.12 for O = 16. He also refers to "six 

 experiments " under the heading 207.078, as published in the 

 same Annalen in 1830. As last reference he says that 

 Berzelius " selected " five of the preceding analyses giving 

 207.14 and gives as source for this reference the same volume 

 and page of the Lehrbuch above mentioned. 



Turning to the Skandinavian Sebelien (p. 145-146) we 

 find the identical nine determinations quoted by Clarke 

 identified by the weights given but in a different order, and 



