The other day, l was driving along in my old Mini when the gearknob came off in my hand.

rose quartz:

The principle explaining the transmission of paludic diseases through the introduction of the protozoa into the body of the Anopheles, and consequently into the vertebrate animals is universally accepted.

Additionally, the use of HCl solution is not desirable due to the formation of Cl 2 gas by reaction of orthoperiodic with hydrochloric acid.