60 Missouri Agricultural Report. 



dition to receive the metal, and no part of its preparation or grad- 

 ing is included in the foregoing contract. All concrete culverts are 

 constructed by the county, and this work is done prior to the mac- 

 adamizing. Concrete for culverts is costing $7.00 per cubic yard. 

 This road is costing $4,000 per mile, inclusive of the above grading, 

 culverts and metal. There is not a grade on the entire 12 miles to 

 exceed 4 per cent. The road is 22 feet wide from ditch to ditch, 

 with a width of metal of 14 feet and a depth of 12 inches loose 

 measure. The subgrade is being thoroughly rolled with a 10-ton 

 roller before receiving the metal, which is placed in two courses, 

 each 6 inches thick. Each course of crushed stone is likewise be- 

 ing thoroughly compacted by rolling. Limestone screenings are 

 finally spread over the surface, which is again rolled. No water is 

 used in the construction of the macadam roadbed. 



Yours very truly, 



CURTIS HILL, 



State Highway Engineer. 

 Columbia, Mo., December 30, 1912. 



ANNUAL REPORT OF THE STATE VETERINARIAN. 



Mr. President and Gentlemen of the Board of Agriculture : 



I beg herewith to submit my annual report 

 for the year 1912 for your consideration. All 

 lines of sanitary control work attempted by this 

 department have progressed satisfactorily. 



We are much concerned over the numerous 

 reports of sheep scabies. While the reported 

 points of infection are reduced practically one- 

 half over the year 1911, yet the infection is scat- 

 tered over a wide territory and will demand our 

 serious consideration and attention the coming 

 year. There have been shipped from Missouri 

 Dr. s. Sheldon. ^^ ^^^ pubHc markets thirty shipments of sheep 



infected with scabies. We have traced the infection from several 

 of these shipments back to the public stockyards, unquestionably 

 coming from other states. 



