tricks of the trade; what's the trick of getting this chair to fold up?

the enchanting cerebralisms of Eliot

The electron pairing theory of orbital hybridization has been shown to account, very satisfactorily, for the variations which have been observed in the properties of C-H bonds.

His Sam failed to pass at the preliminar' examination, an' wasn't allowed to try for a diplomy in public; an' Enoch an' his wife, why, they seem to hold it ag'in' me thet Sonny could step in at the last moment an' take what their boy could n't git th'oo the trials an' tribulations of a whole year o' bein' teached lessons at home an' wrestled in prayer over.