A letter from a male physician in the country, to the author of the female physician in London; : plainly shewing, that for ingenuity, probity, and extraordinary productions, he far surpasses the author of the narrative. To which is added, a short dissertation upon generation, whereby every child-bearing woman may be satisfied, that 'tis as impossible for women to generate and bring forth rabbets, as 'tis impossible for rabbets to bring forth women