22 books • 12 series
From 1920 to 1960--Ernest Rutherford to J. Robert Oppenheimer (History's Most Influential Scientists)
From 1860 to 1920--Louis Pasteur to Henrietta Swan Leavitt (History's Most Influential Scientists)
From 1800 to 1860--Alexander Von Humboldt to Gregor Mendel (History's Most Influential Scientists)
From Ancient Greece to 1600--Asclepius to Johannes Kepler (History's Most Influential Scientists)
From 1600 to 1800--William Harvey to Georges Cuvier (History's Most Influential Scientists)
I Can Count to 10!: Number Names and Count Sequence (Rosen Common Core Math Readers: Level A) (Rosen Common Core Math Readers)