Mixing blood with alcohol under microscope

Procedure: put a drop of (human) blood onto a thick glass plate. cover the drop with a thin (e.g. ) glass plate (the drop dissipates across almost entire area). observe erythrocytes (the red blood cells). put a drop of alcohol (40% vol vodka) at the edge of the thin glass plate so that alcohol would permeate in between plates and mix with blood slowly. observe the blood while it gets diffused with alcohol: check the regions where the alcohol arrives first, then move to the other end and inspect how the mostly untouched regions are doing. No coloring or other chemicals has been applied, just a drop of human blood and vodka. (plates washed with the same alcohol and dried for 24h before experiment)