Grain Futures Act happened in 1922.

Hedging is the process of minimizing the risk to an investor's portfolio by minimizing their exposure to stock volatility. Index futures are the act of investing through an obligation to purchase or sell a product by a certain date. Hedging with index futures is the act of trying to minimize the investor's exposure to the volatility of futures.

This act, along with its later amendments in 1936 and 1975, subjects commodities, commodity futures, and option trading to federal supervision and restricts trading to futures exchanges

Philip McBride Johnson has written:

'Special release on the Futures Trading Practices Act of 1992'

'Commodities Regulations/With Supplements (3 Volumes and 2 Supplements)'

'Futures markets' -- subject(s): Futures market, Commodity exchanges

Onions have chemicals that act as natural mosquito repellents. This liquid can be extracted from the onion into a liquid mosquito repellent