Length of Time to Incubate Petri Plates. 103 
TABLE TI. 
Cover CroppreD Sorts 
Percent Counts at 3, 5, and ?7-Days Incubation are of 10-Days Counts.* 
Bacrertat§ DrtuTIon 
CropreD TO 1-40,000  1-400,000 
3 5 aiomaysinn sy 06 7 | 10 Days 
Nothing 
November 14, 1914..... 30.1%| 55.9%| — **%| 100.0%]  **9%] 52.2%]  **9%| 100.0% 
February 6, 1915........ 15.5 74.4 88.1 100.0 43.1 62.6 62.6 100.0 
March 2, 1915........... 56.4 84.1 93.4 100.0 42.9 88.4 86.4 100.0 
Mirek 27, 1915. 2... on 25.3 54.4 68.9 100.0 12RD 46.3 58.8 100.0 
Nyon 13.4 66.2 85.2 100.0 | 29.8 70.2 93.0 100.0 
Average....| 27.8 67.0 83.9 100 0 32.1 63.9 Upar 100.0 
Millet ; 
November 14, 1914..... ABIGr] 58.4 ad 106.0 -* 55.9 ak 2 102.0 
February 6, 1915........| 21.9 84.6 100.0 100.0. 24.1 60.3 56.4 100.0 
IMsirenias LOU 3. 5.5:t a es 48.6 94.6 93.1 100.0 33.8 ile 87.5 100.0 
Maneh) 27, 1915.00. ..4 5: | 32.8 79.2 90.6 100.0 14.2 54.3 80.0 100.0 
ASS ay art GEE 0) 1s eee PAV 82.6 92.2 100.0 7.4 67.9 82.7 100.0 
Average....| 32.6 | 80.0 | 94.0 | 100.0 | 199 63820 76e7, 1) 10080 
Soy Beans 
November 14, 1914.....) 18.6 42.9 itt 100.0 as 54.8 sas 100.0 
February 6, 1915........| 33.0 65.4 80.8 100.0 18.5 54,2 66.7 100.0 
Mirehi2 1915s. sco « 40.4 88.2 99.4 100.0 36.5 74.6 88.8 100.0 
sVWarchiad, LOD. 2...-.|| 30:0 70.9 88.2 100.0 22.6 61.3 58.1 100.0 
J:\yoyac 67 GY ak) Gee ee | 12.5 85.7 98.2 100.0 ibteal 75.0 91.5 100.0 
Average....| 26.9 70.6 91.7 100.0 222 64.0 76.3 100.0 
Nothing 
November 14, 1914.....| 20.3 54.5 ef 100.0 ae 60.0 ae 100.0 
February 6, 1915........ 53.2 97.6 100.0 100.0 35.3 85.3 88.2 100.0 
Mareh 2; 1915. ........... 44.1 84.3 83.1 100.0 14 3 71.4 81.4 100.0 
Marcha, 1915). ...6 6.53 36.2 Mico 91.4 100.0 20.1 50.0 67.6 100.0 
Aprils OLa ais co alee 18.8 one 78.4 100.0 15.8 (Bar 100.0 100.0 
Average....| 34.5 77.4 88.2 100.0 21.4 | 68.1 84.3 100.0 
Hairy Vetch 
November 14, 1914..... 19.6 40.1 te 100.0 oa 42.3 te 100.0 
February 6, 1915........ 30.7 63.8 84.4 100.0 20.3 54.7 85.9 100.0 
March 2 OU ie) at eer. 43.8 83.2 97.2 100.0 20.2 Ta. 88.5 100.0 
Mares 2; POLO cc. nie +’ 28.1 71.4 100.0 100.0 28.5 69.4 89.1 100.0 
Lorri Gilby silt) eee aerasens 15-3 84.9 94.1 100.0 29.5 68.2 88.6 100.0 
Average....| 27.5 69.7 93.9 100.0 24.6 (iil e7/ 88.2 100.0 
Winter Rye (Sown Early) 
November 14, 1914.....| 26.5 55.2 fe 100.0 He 35.5 zs 100.0 
February 6, 1915........ 46.1 48.9 75.1 100.0 16.5 49.5 53.6 100.0 
Marchi 2s 1905s. cessn 46.5 63.2 79.4 100.0 43.4 84.9 84.9 100.0 
Manel 27,2915. .00..2.2 30.3 76.4 86.9 100.9 22.4 44.9 65.3 100.0 
April tov Ol ieee scans i 24.5 84.8 88.0 100.0 10.8 63.8 86.8 100.0 
Average....| 34.8 65.7 82.4 100.0 23.3 66.7 Tit 100.0 
Nothing 
November 14, 1914..... 25.1 byes} hy 100.0 a 34.5 ae 100.0 
February 6, 1915........ 22.9 68.3 74.7 100.0 38.2 77.9 94.1 100.0 
Mareht 21915 esa. acces © 61.8 83.7 101.6 100.0 BYAarL 69.2 90.4 |, 100.0 
Miami fienl Olean x tase Pays) Dont Nie M00 100.0 Bai 64.3 61.9 |g 100.0 
PAD EUS SLO UO re: oe lore seine 8.3 42.3 |§ 52.7 100.0 13.3 73.3 97.7 100.0 
Average,...| 28.3 | 61.7 | 76.6,| 100.0 | 27.0] 63.9 |_86.0_| 100.0 
