The bow, Ishi called man-nee. It was a short, flat piece of mountain juniper backed with sinew. The length was forty-two inches, or, as he measured it, from the horizontally extended hand to the opposite hip. It was broadest at the center of each limb, approximately two inches, and half an inch thick. The cross-section of this part was elliptical. At the center of the bow the handgrip was about an inch and a quarter wide by three-quarters thick, a cross-section being ovoid. At the tips it was curved gently backward and measured at the nocks three-quarters by one-half an inch. The nock itself was square shouldered and terminated in a pin half an inch in diameter and an inch long.

The wood was obtained by splitting a limb from a tree and utilizing the outer layers, including the sap wood. By scraping and rubbing on sandstone, he shaped and finished it. The recurved tips of the bow he made by bending the wood backward over a heated stone. Held in shape by cords and binding to another piece of wood, he let his bow season in a dark, dry place. Here it remained from a few months to years, according to his needs. After being seasoned he backed it with sinew. First he made a glue by boiling salmon skin and applying it to the roughened back of the bow. When it was dry he laid on long strips of deer sinew obtained from the leg tendons. By chewing these tendons and separating their fibers, they became soft and adhesive. Carefully overlapping the ends of the numerous fibers he covered the entire back very thickly. At the nocks he surrounded the wood completely and added a circular binding about the bow.

During the process of drying he bound the sinew tightly to the bow with long, thin strips of willow bark. After several days he removed this bandage and smoothed off the edges of the dry sinew, sized the surface with more glue and rubbed everything smooth with sandstone. Then he bound the handgrip for a space of four inches with a narrow buckskin thong.

In his native state he seems never to have greased his bow nor protected it from moisture, except by his bow case, which was made of the skin from a cougar's tail. But while with us he used shellac to protect the glue and wood. Other savages use buck fat or bear grease.

The bowstring he made of the finer tendons from the deer's shank. These he chewed until soft, then twisted them tightly into a cord having a permanent loop at one end and a buckskin strand at the other. While wet the string was tied between two twigs and rubbed smooth with spittle. Its diameter was one-eighth of an inch, its length about forty-eight inches. When dry the loop was applied to the upper nock of his bow while he bent the bow over his knee and wound the opposite end of the string about the lower nock. The buckskin thong terminating this portion of the string made it easier to tie in several half hitches.

When braced properly the bowstring was about five inches from the belly of the bow. And when not in use and unstrung the upper loop was slipped entirely off the nock, but held from falling away from the bow by a second small loop of buckskin.

Drawn to the full length of an arrow, which was about twenty-six inches, exclusive of the foreshaft, his bow bent in a perfect arc slightly flattened at the handle. Its pull was about forty-five pounds, and it could shoot an arrow about two hundred yards.

This is not the most powerful type of weapon known to Indians, and even Ishi did make stronger bows when he pleased; but this seemed to be the ideal weight for hunting, and it certainly was adequate in his hands.

According to English standards, it was very short; but for hunting in the brush and shooting from crouched postures, it seems better fitted for the work than a longer weapon.

According to Ishi, a bow left strung or standing in an upright position, gets tired and sweats. When not in use it should be lying down; no one should step over it; no child should handle it, and no woman should touch it. This brings bad luck and makes it shoot crooked. To expunge such an influence it is necessary to wash the bow in sand and water.