406 



pis bnmnea, Fiib.), smeared dagger [Apatcla ohlinita, Sm. and Abb.), aud 

 taruisbed pbmt bug {Lygm pratensisj Liuu.), with suggestious as to 

 remedies. 



Strmcbcrry leaf blight. — Observations at the station in tlie summer of 

 1890 on ''two lots of strawberries, one in a heavy, poorly drained soil, 

 the other in a lighter soil with an almost perfect natural drainage, 

 indicated no differences in the amount of injury from blight which could 

 be attributed to differences in soil. It was noticed, however, that rows 

 of strawberries which were exj^osed to the sun were much more affected 

 by the blight than those in the shade. Experiments with Bordeaux mix- 

 ture, eau celeste, liver of sulphur, and Loudon purple indicated that 

 the blight can be largely prevented by the use of either of the first two 

 fungicides named, and to some extent by the others. Bordeaux mix- 

 ture gave the best results. The autlipr recommends that it be used as 

 often as once in two weeks. A list of 47 varieties of strawberries 

 grown on the station farm is given, arranged according to the relative 

 amount of injury from the blight observed on them during the season 

 of 1890. 



Massachusetts Hatch Station, Bulletin No. 11, January, 1891 (pp. 22). 



Conditions affecting the strength of the stomach of the 

 CALF FOR rennet, W. P. Brooks, B. S. (pp. 3-8).— A report of an 

 investigation carried on at the station in 1889 and 1890, " with the object 

 of determining primarily the influence, if any, of length of time after 

 eating upon the strength of the calf's stomach as a rennet. * * * 

 It was decided also to note the influence, if any, of age and breed." 

 Calves of different ages and breeds, all grades, were purchased from 

 time to time from farmers in the vicinity of the station, care being taken 

 to ascertain the treatment of each calf previous to the purchase. 



Every calf was taken from the farm to the butcher's by the station assistant, who 

 was in all cases present whea it was slaughtered, aud superintended the taking of 

 the rennet, which was immediately carried, with all its contents (both ends being 

 tied), in a clean covered pail to the laboratory. This work in 1889 was done by Mr. 

 F. S. Cooley,andthisyearbyMr. F. O. Williams, assistant agriculturists, respectively, 

 in these yfears. The description of the laboratory management by the chemist, Dr. 

 C. A. Goessmann, is here inserted : 



"The rennet, as soon as received, was emptied, turned inside out, and cleaned by 

 placing in a large dish of water and allowing it to float therein for a few moments. 

 In no case was water forced into the stomach, but particular care was taken to per- 

 form the washing as gently as possible, to prevent the loss of the delicate lining mem- 

 brane which contains the curdling principle. The stomachs were then reversed, filled 

 with air to their full capacity and hungup to dry in a well-ventilated room. * » » 



"Before the tests were made the rennets were taken down, stripped of fat and 

 worthless parts, and cut into small strips. In this condition they were spread out in 

 a well-ventilated room and allowed to air dry several days. 



"The rennet solutions were prepared by tlie Pduinenthal process. In every case 

 the same weight of rennet was taken ami the final solution raised to the same vohime, 

 great care being taken to secure, as far as practicable, identical conditions in all 

 cases. The results were obtained with fresh whole morning's milk." 



