tip: apex of tongue, most anterior part blade: lies right in back of the alveolar ridge dorsum (body): main mass of tongue in front of the root root: most dorsal part of tongue.
Bring milk, water and celery root to a simmer in a large saucepan over medium heat. Reduce the heat to maintain a gentle simmer and cook until very tender, about 30 minutes. Reserve 1 cup of the cooking liquid, then drain. Puree the celery root, butter, salt and pepper in a food processor (or blender) until smooth and the consistency of thinned mashed potatoes.
When planting celery in the fall, you can save time and effort by direct seeding. Wait until the temperatures drop to 70 or 75 degrees Fahrenheit. Sow the seeds 1/8 inch deep in the soil and about 1 inch apart. When the seedlings emerge, thin them to a spacing of 6 to 8 inches to make room for the developing plants.