Cocoon, an oblong ball or case, in which the silkworm involves itself, formed from the very fine filaments from which silk thread is made. The term is also applied to the envelope of other larva) during their pupa state. (See Butteefly, Caterpillar, and Silkworm.)


Cocopas, a tribe of Indians allied in language to the Yumas, living upon the Colorado river of California, between the mouth of the Gila and gulf of California. They number less than 500 souls, and live by cultivating the soil. In the report of Don Jose Cortes to the king of Spain, made in 1799, this tribe is mentioned as then embracing 3,000 souls.


Cocytus, in antiquity, a river in Epirus deriving its brackish water from the melted snow of Mount Pindus, and emptying, after a course underground, into the Acherusian lake. - Also a river of the infernal regions, a tributary of the Styx, emptying with the Pyriphlegethon into the Acheron.


Codeia (Gr.Codeia 05001 head of poppy), an alkaloid found in opium, in which it exists combined, like morphia, with meconic acid. It has the formula C36H20NO5. It is soluble in water, alcohol, and ether, but is insoluble in alkaline solutions. It combines with acids to form crystallizable salts. (See Opium).


Codicil (Lat. codicillus, diminutive of codex), an addition or supplement to a will, requiring the same formalities of execution and the same testamentary capacity. The distinction between the two formerly was, that by a will an executor was appointed, and by a codicil not; but now an executor may be appointed by either or by neither, and the codicil is employed to meet changes of purpose on the part of the testator, and to provide for new circumstances. A will and codicil are to be construed together, and the latter, as the more recent expression of the testator's purpose, will modify and control the other wherever they are not in harmony; but in other particulars the will is to stand. There may be several codicils to a will, all of which must be probated with it; but any one may be rejected for want of the legal requisites, and the others will remain and have effect as if that had never been made.


Codogno, a town of Lombardy, Italy, in the province and 32 m. S. E. of Milan, between the Po and the Adda; pop. about 9,000. It has broad streets, several colleges and schools, good private buildings, some handsome churches, a hospital, and a theatre. It is noted for its silk manufactures, and for being the principal mart in Italy for Parmesan cheese. The Austrians were defeated here in 1746 by the Spaniards, and in 1796 by the French.


Codrus, the last king of Athens, son of Me-lanthus, reigned, according to tradition, about 1068 B. 0. The legend relates that when Attica was invaded by the Dorian Heraclidse from Peloponnesus, the oracle declared that those would be victorious whose king should be slain. Oodrus thereupon determined to sacrifice himself, entered the camp of the enemy in disguise, provoked a quarrel with the common soldiers, and was slain in the fray. The Dorians, having learned the death of the Attic king, abstained from hostilities and returned home; and the Athenians, thinking no one worthy to succeed Codrus, abolished the kingly dignity, and instituted in its stead the office of archon. Medon, son of Codrus, was the first archon.