888 EXPERIMENT STATION RECORD. [Vol.40 



20 cc. of the serum are given subcutaneously, intramuscularly, or intraperi- 

 toneally. In the rare cases of intra-uterine infection, it is necessary to inocu- 

 late the mother several days before parturition with from 40 to 80 cc. of the 

 serum and later to inoculate the calf as usual. In epidemics in which the calves 

 protected by the serum from the first form of the disease are uot protected 

 from the form which develops later, the ordinary inoculation should be fol- 

 lowed in two or three days by an injection of an autogenous vaccine. The 

 serum is said to give the best results when it is prepared from the same 

 strains as those which cause the disease. 



In conclusion the author points out that seroprophylaxis of the disease must 

 always be associated with sanitary measures to prevent the spread of infection. 



The prophylaxis and cure of exudative pleuropneumonia in goats, N. Mom 

 (R. 1st. Incoragg. NapoU, Ann. Staz. Sper. Malattie Infett. Bestiamo, S (1916), 

 No. 2, pp. 7S-78). — The causative organism and mode of infection of exudative 

 pleuropneumonia of goats -are discussed, and a method for the prophylaxis and 

 cure of the disease is suggested which consists of the inoculation of the animals 

 with a serum prepared from the pleural exudate of diseased animals revived 

 under aseptic conditions and treated with toluol and ether. The author re- 

 ports that a group of goats thus treated remained Immune, while a control 

 group, not inoculated, contracted the disease. 



An official experiment on the prevention and cure of exudative pleuro- 

 pneumonia in goats by means of a serum obtained from the specific pleural 

 exudate, N. Mom (A\ 1st. Incoragg. NapoU, Ann. staz. Spry. Malattie Infett. 

 Bestiame, 4 (1917), No. 1, pp. 51-71). — Further details are given of the use of 

 the serum noted above for the prevention and cure of exudative pleuropneu- 

 monia. 



From the reports presented the conclusions are drawn that the disease can 

 be prevented by the subcutaneous Inoculation of the specific serum in doses of 

 1.5 to 2 cc. for suckling goats and '-'•"> to EMS cc. for adult animals, depending 

 upon the condition, state of nutrition, and state of gestation. The curative 

 dose ranges from 3.5 to 4.5 ce. A second Injection should not he made, as it is 

 without curative effect and may produce anaphylactic phenomena. 



An official experiment on the prevention and cure of exudative pleuro- 

 pneumonia in goats by means of a serum obtained from the specific pleural 

 exudate. N. Mom {Mod. Zooiatro, Parte BoL, [29] (191S), No. 9, pp. 19S-200).— 

 This is a summary of the article noted above. 



Important points in determining the presence of hog cholera in the herd, 

 G. W. Koinkk (Vn. Dipt. An>. and ImnUgr. BuL 126 (1918), pp. 90-102. figs. 

 G). — This is a general discussion of hog cholera, including a description of 

 symptoms a.nd post-mortem findings, instructions in regard to the value and 

 use of nntihopr cholera serums, and suggestions for the prevention of the spread 

 of the disease. 



RURAL ENGINEERING. 



Brick pavements in the Middle West. A. T. GOLDBECK and F. H. .Tact 

 {U. 8. Dept. Any.. Public Roads, l (1919). No. 10. pp. 8-18, figs, l',).— The re- 

 sults of an Inspection and study, by the authors, Of a large number of brick 

 roads throughout the Middle Western States are reported. The following con- 

 clusions are drawn : 



"The type ami thickness of base for any brick pavement should depend upon 

 (1) the maximum weighl of the loads to be carried, and (2) the bearing value, 

 under all weather conditions, of the underlying soil. In all oases where the 

 traffic to be carried is likely to be heavy or where the underlying soil is of such 



