To the right is gum arabic of a high quality in the form of "tears" from the acacia tree Acacia senegal, which has been difficult to obtain at times because of conflicts in the growing areas.

Airedale 'Gum' after an unfortunate run-in with a porcupine. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing ...