Pipette construction

Claim 1

A PIPETTE COMPRISING AN ENLONGATED TRANSPARENT BODY, SAID BODY BEING PROVIDED WITH A PLURALITY OF INTERIOR SIDES DEFINING AN ELONGATED ENCLOSED CHAMBER IN THE INTERIOR THEREOF EXTENDING SUBSTANTIALLY THE LENGTH THEREOF, SAID BODY BEING PROVIDED WITH AN OUTWARDLY OPENING PASSAGE ADJACENT ONE END THEREOF COMMUNICATING WITH ONE END OF SAID CHAMBER AND BEING PROVIDED WITH ANOTHER OUTWARDLY OPENING PASSAGE ADJACENT THE OTHER END THEREOF COMMUNICATING WITH THE OTHER END OF SAID CHAMBER WHEREBY LIQUID IS ADMITTED TO SAID CHAMBER, SAID BODY INCLUDING A POST MOUNTED IN SAID CHAMBER AND HAVING CALIBRATION MARKS THEREON, SAID CHAMBER BETWEEN SAID SIDES AND SAID POST GRADUALLY INCREASING IN THICKNESS FROM ADJACENT ONE END TO THE OTHER WHEREBY WHEN SAID MARKS ARE VIEWED THROUGH SAID LIQUID IN SAID CHAMBER THE OPAQUENESS, TURBIDITY, DENSITY AND LIKE CHARACTERISTICS OF THE LIQUID ARE DETERMINED BY NOTING THE POINT AT WHICH THE CALIBRATION MARKS DISAPPEAR BEHIND THE LIQUID, SAID POST BEING CONICAL AND OFFSET FROM THE CENTER OF SAID CHAMBER TO ESTABLISH A PLURALITY OF SCALES WHEN SAID CALIBRATION MARKS ARE VIEWED THROUGH SAID PLURALITY OF SIDES.