Figure 4: A chick embryo exposed to 25ug of lead acetate. Shows severe abnormal concentrated blood pooling throughout entire body cavity and extreme underdevelopment.	Figure 5: A chick embryo exposed to 25ug of lead acetate. Good example of blood pooling in the tail region which is abnormal from the control.
Figure 6: A chick exposed to 25ug of lead actetate. This embryo demonstartes that lead can cause abnormal blood pooling in the upper back of developing embryos.	Figure 7: A chick embryo exposed to 25ug of lead acetate. Especially good example of concentrated pooled blood in the mid- and hind-brain regions.