Page 



E. Explanation of the various effects of the dead-water phenomenon . 93 



The loss of speed; the sudden appearance and disappearance of the dead-water, 

 its apparent capriciousness, p. 94-. — The appearance of the sea-surface, 

 p. 97. — The motion of the water around the vessel, p. 102. — The loss of 

 steering, p. 105. — The sudden effect produced by the stopping of the en- 

 gine, p. 107. — How to get free of dead-water, p. 110. — The occurrence 

 of dead-water, p. 112. 



F. Empirical laws of resistance 115 



Influence of the difference of spec, gravity between the water-layers ; the dif- 

 ferent causes of resistance, p. 115. — The influence of the depth of the 

 fresh-water layer, p. 121. — The influence of the sharpness of the bound- 

 ary, p. 123. — Application of the experimental results to the case of full- 

 sized ships, p. 124. — The influence of the shape of the boat-model, p. 128. 

 — Application of the experimental results to the case of the Fram at Tai- 

 mur, p. 133. 



Appendix (Mathematical treatment) 139 



Supplement. (Accounts of dead-water) 146 



Explanation of the plates 148 



CORRECTIONS. 



Page 57, line 13, for Aderman read Adermax. 



Plate XI, Fig. 3, for wave-resistance read dead-water-resistance. 



Plate XIII, in the figure below Fig. 1, for quadrate read square. 



