Human skin, hair and iron filings - the cocktail of what you are breathing in on the tube.
There were other passengers in the carriage at the time. Police want to trace the man seen in this e-fit.
Parts of the Tube have turned into an American-style metro on one of the world's most popular digital maps.
Transport union the RMT is gathering its members together in central London as part of its campaign to halt cuts to Tube services.
The plans outlined by Mayor Boris Johnson include cutting the number of station staff, closing ticket offices, and introducing driverless trains.
The RMT says the austerity measures will not only mean job losses, but impact on safety and services.
The event aims to inform trade union members as well as the public about the issues and to discuss the next campaigning steps.
- The introduction is down to a partnership between Transport for London (TfL) and Raphaels Bank
- A survey which show only 62% of travellers bought currency in advance of their holidays
- UK cardholders can withdraw sterling for free, while the euro withdrawals are commission-free
Cash points dispensing pounds and euros are being installed at dozens of Tube stations. The cash points will appear at 70 Underground stations, including major interchanges such as Waterloo, London Bridge. Victoria and King's Cross/St Pancras.
London Underground says an extended strike by power workers is not affecting Tube services. Staff have walked out until July 15 in a dispute over pay, pensions and working conditions.
Richard Jones, London Underground's head of command and control, said:
"Whether this action lasts for eight days or longer, our customers will not be affected. We simply will not give in to wild pay claims at the expense of fare and taxpayers.
"The unions have already rejected lump sum payments of £13,700 and salary increases of up to 7% in exchange for increased productivity."
An eight day strike by London Underground power workers is set to go ahead tomorrow after talks to resolve a row over pensions and working conditions failed. Members of the RMT and Unite are due to walk out from 8pm on Tuesday.
London Underground says the action will have no impact on Tube services. Unions claim there will be some disruption.
– Mick Cash, RMT
This dispute is over an all-out attack on the power control grade that would hit pensions, length of service and working conditions and damage the futures of this key group of tube workers. Management's claim that they can run the system without them is both provocative and dangerous.
– Richard Jones, London Underground
Due to detailed planning there will be no visible impact on the network should the strike action go ahead.
Thieves tend to target cash and small high value items that are easy to sell on. Of all the items reported stolen: mobile phones top the list followed by cash, credit cards and wallets. Bag theft is also very common with 568 bags reported stolen last year, as well as laptops (277) and watches (125).
- Mobile phones top the list followed by cash, credit cards and wallets
- Bag theft is also very common with 568 bags reported stolen last year
- 277 laptops were stolen
- 125 watches were also taken
More unusual items reported stolen include games consoles (19), prams and wheelchairs (5), toys (5) plants (2) and one unlucky traveller even had a pet taken.