26 DR. EDWARD SCHUNCK ON THE 



and more especially those of the last ten years, and which 

 have gone on increasing in the direct ratio of the increase 

 in the manufacture of salt, when there is an artificial cause 

 at work patent to every one, tends to injure science in the 

 eyes of those who know the whole history of these sinkings. 

 The manufacture of salt in Cheshire is interesting archaeo- 

 logically, historically, commercially, and geologically; and 

 it is impossible to do full justice to it in one short paper. 



V. Remarks on the Terms used to denote Colour, and on 

 the Colours of Faded Leaves. By Edward Schunck, 

 Ph.D., F.R.S. 



Eead December 13th, 188 1. 



At the recent Meeting of the British Association held at 

 York, a paper was read by Dr. Montagu Lubbock before 

 the Section for Anatomy and Physiology, on " the Deve- 

 lopment of the Colour-Sense," which I had the pleasure 

 to hear. The purpose of the author was to controvert the 

 opinion of those who hold that the colour-sense in man 

 was not always what it is now, but that it has gradually 

 been developed, the last stages of this development having 

 taken place within historical times. It is supposed that the 

 human eye was originally only capable of distinguishing 

 black and white, and that the capacity of seeing the various 

 colours of the spectrum arose by degrees, red being the 

 first and blue the last colour to be discriminated. Mr. 

 Gladstone, in a paper published not long ago, goes so far 

 as to say that the ancient Greeks, having no word for blue, 



