Volume 18 (1923)

Number 218
Vinegar fermentation and home production of cider vinegar

Number 219
Concrete fence posts

Number 220
The Apple Trumpet Leafminer

Number 221
Crop yields on soil experiment fields in Iowa.

Number 222
Apple storage investigations fourth progress report

Number 223
The growth, returns and uses of planted cottonwood in Iowa

Number 224
Rural social survey of Hudson, Orange and Jesup consolidated school districts, Black-hawk and Buchanan Counties, Iowa

Number 225
The onion industry in Pleasant Valley, Iowa

Number 226
Seed analyses, 1921 to 1924

Number 227
Iowa farmers test new oat varieties

Number 228
Soybeans for Iowa