iowa. 99 



Bulletin 52, pp. 31. — Cream Testing — The Influence of Certain 

 Conditions in Churning on the Amount of Water i/n Butter — A Study 

 of Butter Increasers.— Testing cream hy the Babcock method is dis- 

 cussed, suggestions are given for avoiding common sources of error, 

 and investigations of the influence of the thickness of sweet and sour 

 cream upon the amount adhering to the pipette in measuring and of 

 the error resulting from measuring cream due to specific gravity are 

 reported. Investigations made to determine the existence and effect- 

 iveness of some of the principles governing the proportion of water 

 in butter, such as size and shape of granules, use of warm water in 

 washing, and the extent of working, are reported. Two methods 

 or recipes for increasing the yield of butter are quoted and the results 

 of an investigation given. 



Bulletin 53, pp. 10, pi. 1. — The Asparagus Bust in Iowa. — An account 

 of the asparagus rust in Iowa, the cause of the disease, two parasites of 

 Puccinia asparagi, and preventive measures. A brief bibliography 

 of the subject is appended. 



Bulletin 51f, pp. 286, pis. 39, figs. 106, dgm. 1, chart 1. — Grasses. — 

 Original observations and compiled notes are given on the general 

 characteristics of grasses, their growth and minute structure, fertili- 

 zation, and germination. The subject of purity and vitality of grass 

 seed is considered. The more important cereals are described. The 

 climatology of grasses is discussed, and notes are given on their uses 

 in medicine. Sugar-producing grasses are enumerated, and notes 

 are given on economic uses of grasses. The poisonous and injurious 

 effects of certain grasses are mentioned. Various fungus diseases are 

 described, and other topics connected with grasses are considered. 



Bulletin 55, pp. 25, figs. 7. — Field Experiments. — A detailed account 

 of variety and culture tests with corn, oats, barley, spring wheat, spelt, 

 sorghum, rape, kohl-rabi, soy beans, and sugar beets. 



Bulletin 5? ', pp. H, pi. l,figs. 2. — Experiments in Curing Cheese. — 

 Experiments to test the feasibility of central curing rooms and to study 

 the effects of climate upon the curing of cheese are reported. Cheese 

 fresh from the press at the Iowa Station was shipped to cheese fac- 

 tories in Canada to be cured and also from the Canadian factories to 

 the Iowa Station, the scorings being tabulated. 



Bidletin 58, pp. 22. — Parturient Paralysis and the Schmidt Treat- 

 ment. — A general account of the history, distribution, cause, patho- 

 logical anatomy, symptoms, diagnosis, course, and treatment of this 

 disease, and a summary of the results obtained in the use of the 

 Schmidt treatment as reported by 33 veterinarians. A subject list of 

 station bulletins is appended. 



GENERAL OUTLOOK. 



The main lines of investigation at the Iowa Station are those in 

 animal industry and agronomy. The experiments with range-bred 



