was the article most sought for.
Speaking critically, for a strenuous piece of work like the
exploration of the Duvida, the food was somewhat bulky. A ration
arrangement such as I used on my sledge trips North would have
contained more nutritious elements in a smaller space. We could have
done without many of the luxuries. But the exploration of the Duvida
had not been contemplated and had no place in the itinerary mapped out
in New York. The change of plan and the decision to explore the Duvida
River came about in Rio Janeiro, long after our rations had been made
out and shipped.

"Matte" the tea of Brazil and Paraguay, used in most of the states of
South America, should not be forgotten. It is a valuable beverage.
With it a native can do a wonderful amount of work on little food.
Upon the tired traveller it has a very refreshing effect.

Doctor Peckolt, celebrated chemist of Rio de Janeiro, has compared the
analysis of matte with those of green tea, black tea, and coffee and
obtained the following result:

IN 1,000 PARTS OF GREEN TEA BLACK TEA COFFEE MATTE
Natural oil 7.90 0.06 0.41 0.01
Chlorophyl 22.20 18.14 13.66 62.00
Resin 22.20 34.40 13.66 20.69
Tannin 178.09 128.80 16.39 12.28
Alkaloids:
Mateina 4.50 4.30 2.66 2.50
Extractive substances 464.00 390.00 270.67 238.83
Cellulose and fibres 175.80 283.20 178.83 180.00
Ashes 85.60 25.61 25.61 38.11

Manner of preparation: The matte tea is prepared in the same manner as
the Indian tea, that is to say, by pouring upon it boiling water
during ten to fifteen minutes before using. To obtain a good infusion
five spoonfuls of matte are sufficient for a litre of water.

Some experiments have been made lately with the use of matte in the
German army, and probably it would be a valuable beverage for the use
of our own troops. Two plates and a cup, knife, fork, and spoon should
be provided for each member of the party. The United States Army mess-
kit would serve admirably. Each man's mess-kit should be numbered to
correspond with the number on his duffel-bag.

An aluminum (for lightness) cooking outfit, or the Dutch oven
mentioned, with three or four kettles nested within, a coffee