| [Clover control, U-3 bermuda, and crabgrass control plots]
| Hallowell, Charles K. 1953. Turf Topics [Philadelphia]. June. p. 2.
| More | 263110 |
| [Bentgrass, chickweed, clover, and seed germination observations for March]
| Hallowell, Charles K. 1953. Turf Topics [Philadelphia]. April. p. [1].
| More | 263111 |
| [Suggestions for improving fairway turf this fall]
| Hallowell, Charles K. 1951. Turf Topics [Philadelphia]. August. p. [1-2].
| More | 263097 |
| [November storm brings extra work in drainage, turf growth is ahead of schedule for the season]
| Hallowell, Charles K. 1951. Turf Topics [Philadelphia]. April. p. [1].
| More | 263081 |
| [Fertilizing fairways, grasses, grub control, weed control, and nursery]
| Hallowell, Charles K. 1950. Turf Topics [Philadelphia]. September. p. [1].
| More | 263079 |
| [Abundant rainfall, weed seeds which germinate in the summer, fertilization of turf in late spring or early summer, and areas were turf disappeared in early July]
| Hallowell, Charles K. 1950. Turf Topics [Philadelphia]. August. p. [1].
| More | 263077 |
| [Intense heat, seed heads of crabgrass, and activity of chinch bugs]
| Hallowell, Charles K. 1949. Turf Topics [Philadelphia]. August. p. [1].
| More | 263062 |
| [U-3 Bermuda and Zoysias, weeds in rough turf and along creeks and edges of property, white clover heads, and crab grass]
| Hallowell, Charles K. 1949. Turf Topics [Philadelphia]. July. p. [1].
| More | 263058 |
| [Crab grass control after September 1]
| Hallowell, Charles K. 1948. Turf Topics [Philadelphia]. October. p. [1].
| More | 263049 |
| [Observations of lack of sand, fertilizer, DDT, and mosquitoes]
| Hallowell, Charles K. 1948. Turf Topics [Philadelphia]. July. p. [1].
| More | 263044 |