41.   Now some investors are wondering how much longer this will last.

42.   Now that the map of the human genome is nearly complete, investors are wondering how to profit from the knowledge locked in the double strands of DNA.

43.   Prospective investors also wonder whether North Korea, with no history of private enterprise, will respect private property and profit.

44.   Some investors wondered why a country as economically inconsequential as Russia should play such a big role in world market turmoil.

45.   Some investors wondered why a country as economically inconsequential as Russia should play such a dramatic role in world market turmoil.

46.   Some investors may also wonder whether the new-found humility of airline executives will last, and whether the mistakes of the past will be repeated.

47.   Some investors wonder if the limited quarterly bond sales timetable means the government is waiting for a better environment in which to sell debt.

48.   Some investors wonder how vigorously Ethicon will push Dermabond, considering Ethicon is a major supplier of sutures.

49.   Stock investors already were wondering if third-quarter profits reports might not show the same growth as in previous quarters.

50.   The escalation of violence in the Middle East is spotlighting some nagging negatives that could keep investors wondering about about the outlook for the stock market for some time.