One possible answer takes into account the migration trajectories of the spouses, parents and children of the persons surveyed, as well as the qualitative material derived from biographical interviews and field work observations: a significant number of labour migrants between the Puebla region and the metropolitan area of New York City should be considered transmigrants who are moving in plurilocal transnational social spaces spanning different places in Mexico and the USA.

The other families group themselves differently: empty nests, single parents, working mothers, spinsters with cats, curmudgeons with canes, the Brady bunches, reconstituted households of halves, steps, formers, and presents.

And wherefore, sir? Are your discourses only for wrinkled carls and old rudas wives? Is there no place in your kirk for a girl?

Propane (or sometimes propane/butane mixtures) is extensively used for deasphalting and produces a deasphalted oil (DAO) and deasphalter bottoms (propane deasphalter asphalt, PDA, PD tar) (Dunning and Moore, 1957).