372 ON THE PLACE OF FISH IN 



This was the minute economies of diet." The details of the inquiry 



first time the . 



N and C in are lengthy, but the important point for us to re- 

 cakulatS in member is that for the first time the carbon and the 

 enquTry lal nitrogen of diet was recognised in an official inquiry 

 as a basis for its working value. 



This enquiry, together with others subsequently 

 made in other parts of the country, furnished facts as 

 to how artizans lived, and at the same time Professor 

 Frankland's work furnished the explanation of the 

 origin of muscular power (p. 349). 



The subject The knowledge gained has hardly yet become 

 national a subject of national education, even though the 

 education. Food Collection" now at Bethnal Green Museum 

 has been successively under the care of Dr. E. Lan- 

 kester, Sir Lyon Playfair, Professor Huxley, Professor 

 Frankland, and Professor Church, who has laboured 

 that its teachings shall contain the latest results with 

 exactitude. The Parkes Museum contains a collec- 

 tion arranged by Mr. Thomas Twining, and Professor 

 Corfield has done much to spread information, yet 

 we can hardly say the subject forms part of national 

 education. Each must think out for himself. 



RECAPITULATION. 

 Heat and force from Carbon and from Hydrogen. 



It has been shown that : 



1. The complete oxidation of C always results in 

 the formation of CO 2 carbonic acid. The complete 

 oxidation of H always results in the formation of 

 H 2 O water. 



2. The supply of O may come 



(a.) Direct from the air as in such simple ex- 

 periments as those described on pp. 343 and 344. 



