1889.] On the Nutritive Value of Wheat Meal. 549 



and possibly coincident with, that along which the Jurassic and 

 Liassic strata thin out very rapidly in south-east Yorkshire, and 

 passing thence towards the Cumberland lakes ; (e) a line the general 

 direction of which coincides with that of the Palaeozoic ridge between 

 London and the South Wales coal-field. 



The following Paper was read : 



I. " Experiments on the Nutritive Value of Wheat Meal." By 

 A. WYNTER BLYTH. Communicated by Dr. LAUDER 

 BRUNTON, F.R.S. Received March 30, 1889. 



A physician, who may be designated as A, undertook to live for 

 twenty-eight days on distilled water and whole meal. Each day a 

 certain quantity of the meal was ground by himself, weighed, and 

 made either into cakes or porridge by means of distilled water. 



The excreta were forwarded to me for analysis. 



The experiment may be divided into three stages : (1) A period of 

 eight days, during which the insufficient quantity of 16 ozs. (453*59 

 grams) of whole meal was taken ; (2) a period of fourteen days, 

 during which 20 ozs. (5'66'98 grams) of whole meal were taken ; (3) 

 a period of seven days during which 28 ozs. (793' 77 grams) of whole 

 meal were taken. 



General Physiological Effects. 



The condition of A was carefully tested by Mr. Randall at 

 Mr. Francis Galton's laboratory, before and during these periods. 



Condition before the experiment : 



Weight in clothing 129 Ibs. 



Strength of squeeze (right hand) 67 



(l effc hand) 60 



Breathing capacity 198 cub. in. 



Distance of reading diamond numerals (right 



eye) 9 inches. 



Distance of reading diamond numerals (left eye) 7 



Snellen's type, read at 20 feet distance D 60 



Highest audible note (by whistle) 19,000 vib. 



Reaction time (sound) 15* 



(sight) 15* 



Error in dividing wire in half p. c. 



in thirds p. c. 



Error in degrees in estimating angle 90 



fiO 1 1 



?> jj OL; 



* Reaction time for souud and sight in hundredths of a second. 



