Within it or its modifications all the vital phenomena of which living organisms are capable have their origin.
The phen-a-triazines are more numerous, and are obtained either by the action of concentrated acids on the formazyl compounds (E.
Busch, Ber., 1899, 32, p. 2960): N C(SH):N C 6 H 5 /N C:NC6H5 C. 2 S 7Hs " H s d-H N NH C,H 7 C7 "N N C,H7 C. Harries (Ber., 1895, 28, p. 1223) has also shown that as-phenylhydrazino-acetic esters, when heated with formamide and substituted formamides under pressure, yield dihydrotriazines: CO 2 R CO-NR'-CH H2 N(C6H5)NH2 +R'NH CHO --> CH 2 N(C 6 H 5) IV The phen-a-triazines are yellow-coloured crystalline compounds of a somewhat basic character.
Behind the great natural phen.omena that they 0th ceived all around them, the Egyptians, like other primitive cha :, postulated the existence of divine wills not dissimilar the dnd to their own, though vastly superior in power.
The spirant mutation occurs after a, " and," " with," ei, " her "; thus a phen, " and a head," ei phen, " her head."
The more important nuclei of this type have received special and non-systematic names; when this is not the case, such terms as phen-, benzo-, naphthoare prefixed to the name of the heterocyclic ring.