1890.] 



MICKOSCOPICAL JOURNAL. 



101 



0.016 millimeters. Twist poor. Length, 19.2, 16, 18.4, 16.8 milli- 

 meters; average, 17.6 millimeters. Resistance to rupture: 12.446, 

 2.991 , 10.710, 8.333 gi'ammes ; average, 8.620 grammes. These results 

 indicate an inferior condition of the cotton. The fibres w^ere irregular 

 in diameter with weak points, and a number of strands on the seeds 

 were immature in development. 



Number 13, Allen's long staple, fertilized in the same way that was 

 used with Hawkins'. Diameter of fibre, 0.016 to 0.024 grammes. 

 Twist inferior. Length, 26.4, 25.6, 26.4, 27.2 millimeters; average, 

 26.4 millimeters. Resistance to rupture : 1 7-353^ ^4-539' ^5-5^^' 23.975 

 grammes ; average, 17.845 grammes. The fibre of this variety was 

 more mature and even in diameter, although the twist was inferior, 

 hence it withstood the strain quite well ; but the grade can be consider- 

 ably improved. 



Number 14, Jones' improved, fertilized like Hawkins'. Diameter 



Fig. 10. — Sea'Island — or Florida No. i. 



Fig. II. — Sea Island — No. 2 (shortest'fibre.) 



of fibre, 0.016 to 0.024 millimeters. Twist medium. Length: 22.4, 

 22.4, 23.2, 23.2 millimeters; average, 22.8 millimeters. Resistance to 

 rupture: 23.083, 15.323, 25.448, 20.900 grammes; average, 23.338 

 grammes. The grade of this cotton is an improvement over the last. 



Number 15, Zellner, fertilized the same way. Diameter of fibre, 

 0.016 to 0.020 millimeters. Twist good. Length: 21.6, 21.6, 23.2, 

 23.2; average, 22.4 millimeters. Resistance to rupture: 20.130, 28.- 

 io6, 26.345, 15.644 grammes; average, 22.556 grammes. This is also 

 a good grade of cotton. 



Number 16, Barnett's short staple, fertilized in the same way. Di- 

 ameter of fibre, 0.016 to 0.028 millimeters. Twist poor. Length: 

 22.8, 24.2, 23.2, 24.8 millimeters; average, 24.8 millimeters. Resist- 

 ance to rupture: 10.960, 10.370, 12.050, 8.363 grammes; average, 

 10.436 grammes. The fibre was so weak it was difficult to handle 

 without breaking. The strands were immature in development. 



Number 17, King's improved, fertilized in the same way. Diameter 

 of fibre, 0.012 to 0.016 millimeters. Twist good. Length : 17.6, 20, 



