text:  Those Mexican half-breeds half Indian half Spaniard with sometimes a dash of the Negro are themselves so little pervious to the dangers and evils of their soil and climate that they never seem to remember that Yankee flesh and blood may be rather more susceptible; that niguas[25] and musquittoes and _vomito prieto_ as they call their infernal fever are no trifles to encounter; without mentioning the snakes and scorpions and alligators and other creatures of the kind which infest their strange wild unnatural and yet beautiful country