© General Orders #3 @ 
page 4 
villages, and fortresses in the Quadrangle bound- 
ed by the meridians of 72° 10° W, to 735° 10° We, 
and the parallels 12 50' S, and 1 40! S., 
arranging their work in such @ manner as to 
facilitate the work of the archaeological engin- 
eers engaged in making test excavations: of the 
ruins and needing plans for that purpose. 
The plans for the first month's work in the 
field are issued thus early, chiefly in order to 
promote disaussion and give @ general idea of 
how the work is to be conducted after these 
plans have been carefully considered and dis- 
cussed. 
Discussion of the plans is freely invited, 
and suggestions will gladly be received. It 
is far easier to make changes now, thar after 
we once get started working in the field. 
Director. 
@ 
Peruvian Expedition 1914-15. 
Official Circular #22. 
Instructions for Care and Selection of Mules. 
Selection of Mules (Suggestions for Purchasing) 
The cross between the jack and 2 mare is the 
one most used and is the best. Of these, the males 
resembling the sire, that is, small or medium sized, 
with strong markings, large ears and small feet are 
hardier than those showing the opposite characteristics. 
of the mare. Color does not seem to give any indica~- 
tion of constitution or disposition, except as noted; 
There need be! no distinction as ito sex, but the males 
should be geldings, No miles should be taken which 
are under 4 years, or show signs of haying been worked 
at a younger age. 
A mle should be judged by his AGE, STRENGTH, 
ENDURANCE, and DISPOSITION, 
Indications of age are not very exact as to 
precise years but are clear enough to determine the 
mules’ period age, At, 4 years, 4 of the 6 incisors 
_in each jaw are permanent and the other ones, the end 
ones, are temporary or milk teeth. fhe difference is 
plain as the milk teeth are white and smaller and are 
smooth outside and grooved inside, while the permanent 
teeth sre prooved outside and smooth inside. (The 
tushes also appear at this age; smooth, straight and 
pointed. At 5 years, the remaining milk teeth are re- 
placed by permanent ones, which latter, however, have 
no inside wall. At 6 years, these teeth have the in- 
side wall. At 7 years, the ends of the incisors show 
wear, and the tushes become blunted. From this stage, 
it is a matter of judgment, based on the wear of the 
teeth and the angle of the incisors, Sunken temples 
and wrinkles above the eyes are indications of old 
males, 

