Airborne Amosite Asbestos, Field 2
                This is a cleared membrane filter containing asbestos
                  fibers. A 40X, NA 0.65 phase contrast
                  objective is being used correctly adjusted. 
              
              
                Transmitted Incorrectly Adjusted Phase Contrast Illumination
                
Definition/Function:
                Significance in the Environment:
                Characteristic Features:
                Associated Particles:
                References: