Temperature varies greatly, the annual mean varying from 56° F.
Its weight varies from 48 to about 55lb the cubic foot, but in very hard slowly-grown trunks sometimes approaches 60 lb.
The construction varies with the site, obviously with a view to the best use of the ground from a strategic point of view.
The rainfall, which varies between 39 and 47 in.
Hansen showed that the microscopic appearance of film cells of the same species of Saccharomycetes varies according to the temperature of growth; the limiting temperatures of film formation, as well as the time of its appearance for the different species, also vary.