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238   ANALYSES OF METALLIC IMPLEMENTS.

sulphocyanide was filtered off upon asbestos in a perforated crucible provided with a subsidiary perforated disk (Gooch, Am. Jour. Sci., xx, i i [r905]) to facilitate the removal of material from the filter.

No attempt was made to transfer all the precipitate to the filter, but the containing beaker and adherent material with the precipitate upon the filter were washed twice. The filtrate was reserved for treatment. The crucible was placed inside the beaker, the disk with the adherent precipitate removed and placed outside the crucible within the beaker, the beaker was covered with a watch-glass, and the cuprous sulphocyanide adhering to beaker, crucible, and disk was treated with a mixture of sulphuric acid and nitric acid. Water was added after complete solution of the precipitate had taken place. The solution was filtered from the asbestos and evaporated to the fuming-point of the sulphuric acid, neutralized with ammonium hydroxide, acidified with a few drops of sulphuric acid, and electrolyzed with the use of the rotary cathode. (Gooch and Medway, Am. Jour. Sci., xv, 320 [t 9o3].) The deposit of copper was weighed.

Analyses of the Copper Implements from the North and South Kurgan:, Cultures I, II, and III.

• M. A. Phelps, analyst.   t P. A. Gooch, analyst.   :C. P. Flora. analyst.

IIThis specimen was not examined by Professor Gooch till after paraffin had been applied as a preservative.

Weight
taken for
analysis.

Silica and insoluble material in nitric

acid.

No. of sample.

Article.

Locality.

Character of sample.

N.K. 98* N.K. 93* N.K. 83* N.K. 248*

   Anau North Kurgan   

Awl (?)   

Awl (?)   

Dagger   

Rod (?)    

Terrace III, +18 to +20

feet, Culture I.   
Terrace V, + 28 to + 32 feet,

Culture II (?)     ....
Terrace VII, on surface at

+3o feet, Culture II (?)   

+ 34 feet, Culture II   

Grams.

0.1303

0.1627

0.3626

0.3413

Grams. o.0060

0.0I16

0.0062

0.0182

Anau South Kurgan.

Chisel (?)     Terrace B, +19 ft   

Tweezers    do   

Bar (?)    do   

Awl (?)    do   

Javelin head    Terrace B, + 19.5 ft   

Spiral-headed pin (?) Terrace B, +20 to +23 ft   

Stamp (?)    1 Terrace B, +21 ft   

Ornament (?)    do   

Ring (?)    Terrace B, +2I to +23 ft.
Short rod or bar (?) Terrace B, +21 to +24 ft..

Short rod or bar (?)   do .   

Awl (?)     Terrace B, + 23 ft   

Sickle    Upper dig., + 25 to + 29 ft .
Dagger or short sword Upper dig., + 29 to + 32 ft.

Razor-shape    do   

Rod like a "sound."   do   

Awl (?)    Terrace B, + 33 ft   

Awl (?)    Upper dig., +33 ft.

Dagger    Upper dig., +4o ft   

Spear    Near terrace B   

Iron culture three-

edged arrow-point    

Iron culture rod (?)    

Mixed culture flat

arrow-point    Outer dig., +2 to +4 ft.

Large dagger    Terrace B, + 21 ft    

Corroded crust   

do   

do   

do   

S.K. 276* S.K. 280b* S.K. 274* S.K. 302* S.K. 332* S.K. 281* S.K. 353f S.K. 334* S.K. 203* S.K. 166* S.K. 166$ S.K. 199* S.K. 146* S.K. 142$ S.K. 143$ S.K. 144* S.K. 40* S.K. 97f S.K. 61* S.K. 141* S.K. 8*

S.K. 145* S.K. 205*

S.K. 247§

do   

do   

Metal slightly corroded

Corroded crust   

do   

do   

Metal not homogeneous

Corroded crust   

Metal clean   

Corroded crust   

Metal slightly pitted   

Corroded crust   

Metal clean   

Metal slightly pitted   

Metal clean   

Corroded crust   

do   

do   

do   

do   

do   

do   

do   

Corroded and soaked with paraffin.

0.1173 0.2036 o.5780 0.0428 0.2220 0.1290 0.5219 0.2009

0.6569 0.1807 0.8136 0.3480 0.6474 0.6883 0.5052 o.2390 0.4599 0.3939 0.5793 0.5999

0.0616

0.8988

0.4400

1.0957

0.022I 0.0I05

• 0014

• 0040 0.0280 None. 0.00I2 0.0162

0.0272

0.0041

0.0166

O.00IO 0.0002 0.0175 0.0440 0.0319 0.0131 0.0331

0.0052

0.0236

0.0615