If you have a microscope and a drop or two of the right kind of dirty water you can enter a new world of interest.
Hunting Under the Microscope (p. 50), The Macmillan Company. 1928
If you have a microscope and a drop or two of the right kind of dirty water you can enter a new world of interest.
Hunting Under the Microscope (p. 50), The Macmillan Company. 1928