36 



N. H. AGR. EXl'KKIMKXT STATION. 



[Bulletin 151 



to laboratory conveniences. Only a small sample, twenty-five grams, taken 

 from the shoulder is used. A sufficient_numbcr of records have not as yet 

 been taken to permit the prediction of results. 



Body measurements are mostly made by means of large calipers specially 

 constructed for the purpose. These measurements are taken twice a year 

 and regulated so as to have the ages of the sheep correspond in every instance. 

 The system followed in making measurements and correlating the different 

 parts in terms of a ratio can best be set forth in the following reproduction 

 of part of the record blank used in the experiment for the original tabulation 

 and description of characters: 



Section of record chart, showing the system of taking and recording measurements. 



The foregoing represents but a cursory review or outline of the manner 

 of prosecuting this breeding experiment. Data showing complete results 

 cannot be published until after obtaining of the F^ generation next year. 



(a) Early Lamb Production. 



Owing to the fact that it was necessary to keep most of our largest ram 

 lambs in 1910 for subsequent matings in the breeding experiment, only six 

 "hot-house" lambs were dressed and sold and these not until April 14. These 

 lambs represented two Dorset-Rambouillet crosses and one Dorset-Native 

 cross, one Southdown-Rambouillet cross and two Shropshire-Native crosses. 



Five of the lambs weighed between 28 and 30 pounds, dressing an average 

 of 488 per cent. The price received was $9.00 a carcass. The sixth lamb, 



