filtered 10 ml of a 100ml suspension containing 2gm of soil onto a membrane. The effective area of the filter (area actually exposed to the solution) is 1.3 cm2. The diameter of the microscope field with the 20X objective is .75mm. Using the 40 x objective you counted ten fields with the following results 50, 52, 46, 39, 51, 57, 56, 53, 49, 55. How many organisms were in 1gm of the original soil sample?.