41.   But the MTRC claims that although the air-cooling system was off, ventilation continued and there was no loss of oxygen supply to the train.

42.   Chemical manufacturer White Martins said in a press release that although their truckers were not on strike, hospitals were having problems getting their oxygen supplies.

43.   Fish and shellfish in the Danube Delta are dying as increased water temperatures are depleting oxygen supplies, the private A.M. news agency quoted ecologists as saying.

44.   However, even with the generator running, NASA officials said the crew will still have to use occasional solid-fuel canisters to supplement their oxygen supply.

45.   One boy suffered severe problems when his oxygen supply failed.

46.   One little boy suffered severe problems when his oxygen supply failed.

47.   The aging generator system breaks down periodically, and Russian space officials say oxygen supplies remain plentiful despite the latest problem, which surfaced last week.

48.   That put the spacewalkers behind, so much so that Mission Control ordered Smith to briefly retreat to the station air lock Thursday afternoon and recharge his oxygen supply.

49.   That put the spacewalkers behind, so much so that Mission Control ordered Smith to briefly return to the station air lock and recharge his oxygen supply.

50.   The aging system breaks down periodically, but Russian space officials say oxygen supplies remain plentiful despite the latest problem, which surfaced last week.