779 



lu comparisons of setting nnlk 3, 6, and 9 inches deep at about TO^F., 

 " the cream rose faster and more coniph'tely in the shallow i)ans 3 

 inches deei) than when set in bottles G or inches deep." 



Cream raishir/ hy dilution (pp. 30-32). — These trials were made in 

 wido-montlicd bottles with an outlet at the bottom for drawin;:;' olF 

 the skim milk. The milk of different cows was diluted with an equal 

 volume of water at about 58° F. and kept in a room where the tem- 

 perature ranged from G6'^-76'^ F. About half a pint of milk was taken 

 for each trial. The skim milk was tested after the mixtures had stood 

 1, 2, (I, and 9 hours. The results are tabulated. "The average of all 

 the results obtained showed that in this trial there was left in the skim 

 milk about 40 per cent of the total butter fat after standing 1 hour, 

 30 per cent after li hours, 17 per cent after G hours, and 14 per cent 

 alter 9 hours." 



Similar trials, made with undiluted milk which Avas cooled in a refrig- 

 erator to about To^F. and then kept at 70°-75° F., showed less uniformity 

 in the thoroughness of the creaming of the milk of different cows. 



With rich milk and Tvith that from a new milch cow the cream rose as completely 

 wheu the new milk was (|uiekly cooled to 70° F. without the addition of watiT as it 

 did Avhen diluted with an ef|ual (quantity of water. The risin;^ of the cream was 

 more (•()m))lete in a given time and was hastened by diluting the milk from cows that 

 were not Iresh or that gave a considerable i|naiitity of average milk. 



Illinois Station, Bulletin No. 19, February, 1892 (pp. 16). 



Experiments with oats, 1891, G. E. Morkow, M. A., and F. 

 D. Gardner, B. S. (pp. 33-44). — The experiments were on rate and 

 depth of seeding, and tests of varieties of oats. They were all made on 

 the fertile dark-colored prairie soil of the station grounds. The season 

 was unusually favorable for oats. 



Oats^ qiKoitif!/ of .seed per acre (p. 35). — Welcome oats were sown on 

 7 plats, each 1 by 10 rods, at the rate of from 1 to 4 bushels per acre, and 

 covered by harrowing twice with a slant-toothed harrow. The yields 

 l»er acre of l)oth grain and straw for each of the 4 years the ex])erimeut 

 has been in progress and the averages of the 4 years, are tabidated for 

 each rate of seeding. 



The largest yield of grain [in 1891] was from sowing 3.5 bushels per acre, with lit- 

 tle variation between tlie plats sown at the rate of 2, 2.5, 3, 3. .5, and 4 bushels per acre. 

 Tlie average yield for 4 years was sliglitly larger wheu 3.5 bushels were sown, 

 with comparatively little difference whether 2, 2.5, 3, 3.5, or 4 Itusliels were sown. 

 For the 4 years' sowings, lor 1.5 bushels gave smaller average yields than any of the 

 heavier seediugs. The weight of the grain per bushel was less iu the case of the 

 light seediug. The yield of straw increased with the increase in rate of seeding. 

 For the 2 preceding years the lightest seediug gave the largest yield of straw. For 

 the 4 years there was comparatively little diiference in the yield of straw. 



Oatfi, depth of aoiciufj (pp.35, 36). — Welcome oats were sown in twelve 

 10-foot rows, being covered at depths ranging from 1 to G inches. 

 Sparrows so interfered with the grain that the actual yield could not 

 be ascertained, and only the number of panicles was counted for each 



