| No Image Available | [View from above of a Lark soil tensiometer on a turf surface, Penn State, 1950] | 1950 | W431 |
| No Image Available | Barrel Chart Growth Factors | 1950 | 2074 |
| | Factors Tnfluencing turf Growth; Barrel Diagram | 1950 | 2075 |
| | Whirlwind Type Mower on Tractor Allis - Chalmers; Demonstration Memphis Tenn. 3-27-5 [50] | 03/27/1950 | 2076 |
| | L & G Aerifier Front View; Memphis Tenn. 3-27-50 | 03/27/1950 | 2077 |
| | L & G Aerifier Side; Memphis Tenn. 3-27-50 | 03/27/1950 | 2078 |
| | L & G Aerifier From Rear; Memphis Tenn. 3-27-50 | 03/27/1950 | 2079 |
| | L & G Aerifier In Operation; Memphis Tenn. 3-27-50 | 03/27/1950 | 2080 |
| | Plug From #2 G. White roots Turferator holes; Big Spring G. C. Louisville Ky. 3-27-50 | 03/27/1950 | 2082 |
| No Image Available | White roots Turferator hole, Graw & Noer chickweed F | 3/1950 | 2083 |
| No Image Available | White roots Turferator hole, Graw & Noer chickweed F | 3/1950 | 2084 |
| | Rough: Blue Grass Fairway: Chickweed; Big Spring C. C. Louisville Ky. 3-27-50 | 03/27/1950 | 2086 |
| | Poa Annua Along Edge Of G. Mower & Tractor Roots; Big Spring C. C. Louisville Ky 3-27-50 | 03/27/1950 | 2087 |
| | Bent Grass thrives On Wet Spot Fairway; Officers Club Fort Knox Ky. 3-28-50 | 03/28/1950 | 2088 |
| | Midget Grass Lawn Pearlwort; 53rd St. Mil Wis. 5-2-50 | 05/02/1950 | 2089 |
| | Midget Grass Lawn Pearlwort Close-up; 53rd St. Mil. Wis. 5-2-50 | 05/02/1950 | 2090 |
| | Midget Grass Lawn Pearlwort Close-up; 53rd St. Mil. Wis. 5-2-50 | 05/02/1950 | 2091 |
| | [Elm tree on green damaging turf] | 05/02/1950 | 2092 |
| | Poor Turf Fro Elm #15 G.; North Hills Mil. Wis. 5-2-50 | 05/02/1950 | 2093 |
| | Poor Turf #15 G. From Elm; North Hills Mil. Wis. 5-2-50 | 05/02/1950 | 2094 |
| | Poling After L & G Aerifier #18 G.; Pine Hills Sheboygan 5-9-50 | 05/09/1950 | 2095 |
| | Shady Lawn With Good Turf; Lake Dr. Mil. wis. 5-11-50 | 05/11/1950 | 2096 |
| | Bare Spot under Tree Hard Maple Shade & Dry Soil; Park along Lake Drive Milwaukee May 12, 1950 | 05/12/1950 | 2097 |
| | Thin Poor Turf On Shaded Lawn; Lake Dr. Mil. Wis. 5-12-50 | 05/12/1950 | 2098 |
| | Bare Spot under Hard Maple Excessive Shade; Park-Lake Drive Milwaukee 5/12/50 | 05/12/1950 | 2099 |