This is the first number of a series of " Science Contributions" from the Alabama Station, and it is the most studious and best effort yet made in this country upon the root-knots. The paper is mostly of a technical nature. The author enumerates 36 species of plants which are affected by the nematode. The plants which are most injured, according to the observations made at Auburn last year, are potato, tomato, a species of abut-ilon, cow-pea, bird's foot clover, sunflower, watermelon, musk melon, cabbage, ruta-baga, parsnip and salsify. The treatments suggested are as follows: Sterilization of the soil by starvation ; rotation of crops; clean cultivation ; planting of healthy stocks; care in making composts ; trapping the worms by means of "catch plants." This last method has been used with great success in Germany in dealing with a similar disease of sugar beets. Plants on which the nematodes thrive, but which mature in a short time, are grown and then pulled and burned.

Root-Knot, by Dr. Neal.