w 



Relation of the Chemical Constitution of Bodies to Taste. 195 



Art. XXL — On the Relation of the Chemical Constitution of 

 Bodies to Taste; by Prof. E. N. HorsforDj of Harvard.* 



t 



Prof. Horsford alluded lo a paper upon Glycocoll published 

 in 1846, in which he called attentionj in a note, to the interest- 

 ing relation sustained by that body in its chemical constitution, 

 to other sweet bodieSj and cited the following formulas: 



TT rr 



CiHsj^Os = Glycocoll. C4H3 .-.O3 X 3 = Grape sugar. 



C4H3PQ^03::=Sagaroflead. C4H3H^^^03:=:|Oxydof glycerile 



y^a 



To this enumeration of sweet bodies was appended the query, 

 "Is this similar taste dependent upon a similar arrangement of 

 their minutest particles?" 



Prof. H. remarked that, early in 1848, he presented to the 

 . American Academy of Arts and Sciences, with a modification of 

 the formulae, an additional list of sweet bodies. Some of the 

 formulae were arbitrarily doubled from the received fromiilsej and 

 others fractionally reduced, for the sake, merely, of tracing this 

 interesting relationship. 



The modification of the formulas, and the list as then presented, 

 were as follows : 



H 



C4H4O4 X3 m Grape sugar. 



H 



C4H2H O3 = Grape sugar. C4H2H O3 = Glycocoll. 



O 

 Pb 



N 

 



C4H2H 03 = Sugar of lead. C4H2Pb 03-3==: Citrate of lead. 



o 







o 



H 



^ C4H2K 03 = Acetate of potassa. C4H2H03,H,0, = Nitric ether, 



O 



N 



H 



C4H2H OsXl'S^Oxyd of glycerile. 



CI 



HfO^ 



Br 



C4H2CI CI3 4-2 r= Chloroform. CiHsBr Br3-r2 = Bromofortn.f 



CI 



I I 



Br 



C4 H2 I la-i- 2 = Iodoform. C4H2 I CI3 -f2 = Chloroiodoform. 



I 



CI 



* Proceedings of the American Association for the Advancement of Science, 



fourth meeting, held at New Haven, Conn., August, 1S50. ^ . , , , 



t For the observation that this and the following four bodies may be included 



Peirce, 



his assistant, Dr, 



