Large oil or gas drums were cleaned and filled with medical supplies and food, with enough air space to provide buoyancy, and strung together with rope.
In the interim, special companies of the Royal Engineers augmented the regular level of harassment by firing a total of 3,500 gas drums and 900 gas shells into Lens by 15 August.
The smugglers emerge out of the thick morning fog that hangs low over Nepal's southern plains, riding bicycles and motorbikes loaded with empty petrol drums and gas cylinders.
"We are running all around". The gas-canister drums, he explained, were salvaged from cars in a scrap yard (Chrysler and Volkswagen apparently sound the best); the bales were made of corn leaves, by hand, a group effort that takes months and produces only about two a year.
The biogas production was measured by a drum gas meter (TG05-PVC, Dr.-Ing. RITTER Apparatebau GmbH & Co. KG, Germany).
He worked his contacts and had staff cold-calling corporate gas users to drum up business.
Unguided barrel bombs - typically constructed from oil drums, gas cylinders and water tanks, and filled with high explosives and scrap metal - are dropped indiscriminately from helicopters on densely-populated areas.
They have also been using barrel bombs: do-it-yourself devices, which cost little and are made from oil drums, gas cylinders, or water tanks.
Specialized sonic muscles beat the gas bladder like a drum in the appropriately named drums and croakers, catfishes, squirrelfishes, and toadfishes.
Relics of hope, glory and suffering, from marching drums to gas masks, are on display in their hundreds.
Here are a few things to keep in mind as President Obama meets this week with European leaders -- with energy and Russia high on the agenda -- and as lawmakers and the oil and gas industry beat the drums for more exports.
