Butter-milk............. 1.0 .......... 6.0 ......... 7.0 Beef Tea, strong ........ - .......... 1.44 ......... 1.44 Beef Tea and Meat de- coction of Broth ...... - .......... 0.72 ......... 0.72 Sugar...................100.0 ........... - ....... 100.0 Butter................. 100.0 ............ - ........ 100.0 Total (in Seden- (tary life... 12.57 .......... 4.25 ........ 17 ounces.  Nutriment (in Active (life......... 21.00 ......... 7.00 ........ 28 " Required. (In Severe (labour........22.50 ......... 7.50 ....... 30 "

As examples of the way in which the above Tables should be applied, I will now give three dietaries, in which the quantity of real nutriment has been calculated.

I. —­ British Navy Allowances. (Admiralty Order, 1824.)

Gross weight Real Nutriment.
in ounces.  C. N. Total. 
Bread ............20.0 - 10.3 ...2.1 ....... 12.4
or Biscuit - 16.0 .. 11.4 .. 2.6 ....... 14.0
Oatmeal ........ 1.5 .. 1.5 .. 1.96 . 0.48 ...... 2.44 Cocoa ............ 1.0 - ... 0.5 ... - ....... 0.55
or Cheese ........- ... 2.0 ... - ...1.33 ...... 1.33
Sugar ............ 1.5 .. - ....1.5 ... - ......... 1.5
or Butter ...... - .. 1.5 ...1.5 .... - ......... 1.5
Meat ........... 16.0 .. - ... 2.4 ... 3.24 ...... 5.64
or Salt Meat .. - ...12.0 .. 2.4 ... 3.24 ...... 5.64
Vegetables ...... 8.0 .. - ... 0.9 ... 0.15 ....... 1.05
or Flour ...... - .. 12.0 .. 8.95 .. 1.95 ...... 10.9
Tea .............. 0.25 .. - ... - ... - ....... -
or Coffee ...... - ...1.0 ... - .... - ......... -
__________________________________________________
Total ........ - .... - .. 41.81 . 15.09 ..... 57.0

N.B.—­Besides this, is beer (in harbour only) sixteen ounces, or spirits four ounces.

Table ii. shows the daily food actually consumed by probably the most energetic travelling and exploring party on record.  It was during Dr. Rae’s spring journey to the Arctic shores of America.  He issued, in addition, four ounces of grease or alcohol a day, as fuel for cooking.  He found that it required nearly as much fuel to melt the snow, as it did to boil it afterwards.  This allowance was found quite sufficient, but there was nothing to spare.

II. —­ Dr. Rae’s Allowances in Arctic America.

Gross weight Real Nutriment.
in ounces.  C. N. Total. 
Pemmican (1/3 dry
meat, 2/3 fat) . 20.0 ......13.3 ... 6.6 ...... 19.9
Biscuit ............ 4.0 ..... 2.9 ... 0.6 ...... 3.5
Edwards’s preserved
potatoes .......... 1.6 ..... 1.4 ... 0.1 ...... 1.5
Flour ............... 5.3 ...... 3.8 ... 0.8 ....... 4.6
Tea ................. 0.6 ...... ? ... ? ........ ? 
Sugar ................ 2.3 ...... 2.3 .. - ......... 2.3
____________________________________________________________

........ .... 33.8 ..... 23.7 ... 8.1 ....... 31.8