Sir, since I have neither diligently labored nor brought forth pale and glimmering beads of perspiration upon my blanched and pallid brow, I find myself in this inexcusable position of complete and utter ignorance which I now attempt to elucidate. Having but meager knowledge of the question concerned, and acting on the erroneous assumption that my lettered interrogator might not recognize the rank inaccuracy of my attempt, acting more on woman's intuition than on a midshipman's erudition, and seizing blindly on the abstruse possibility that my futile rumblings might prove correct - I guessed, sir!