Hooke's cells

         were really the outer layers

             of dead cork cells.

     Hooke's microscope

          and his drawing

              of the cork cells

        are shown in Figure 1.

     Hooke also looked

         at thin slices

              of living plants.

     He saw that they too

         were made of cells.

     Some cells

         were even filled

             with "juice."

     The "juicy" cells

         were living cells.

     Hooke also looked

         at feathers,

              fish scales,

           and the eyes of houseflies.