Fabquhar. — Notes on New Zealand Echinoderms. 123 



Table IV. 



Hioil (J + 10 grams Starch. 



Original N. = "088 per cent. 



From these experiments it would appear that there is a de- 

 cided increase of nitrogen when the seed is inoculated with the 

 nitro-culture ; further, the increase is greater when sulphate of 

 potash and superphosphate are added to the soil. 



Except in the case of peaty soil (Table 11), and when com- 

 bined carbon was added (Table IV), there does not appear to be 

 any special increase of nitrogen by inoculating the soil ; and from 

 the results presented in Table II, experiment 5, it is probable 

 that the cellulose in the soil-humus is utilised to promote the 

 growth of the organism and the increase of nitrogen. 



The experiments presented here indicate that to a certain 

 extent nitro-culture can be utilised to assist the replacement of 

 the nitrogen removed by crops from the soil. 



For permission to publish this paper I have to express my 

 thanks to the Management of the Christchurch Meat Company 

 (Limited), in whose laboratory most of the work was carried 

 out. 



Art. IX. — Notes on New Zealand Echinoderms ; with Descrip- 

 tion of a New Species. 



By H. Farquhar. 



Communicated by A. Hamilton, Director Colonial Museum. 



[Read hefore the \VeUingto)i Phi/n.^ophicnl Society, \.<tt Auqnsi, 100(1. | 



These notes will serve to clear up some points which were doubt- 

 ful at the time when my " List of New Zealand Echinoderms " 

 was published (Proc. Linn. Soc. N.S.W., 1898, p. 305) ; to 

 describe a new ophiuran discovered by my colleague Mr. Arthur 

 Haylock, who has made a fine collection of New Zealand echi- 

 noderms ; and to correct several omissions in the " Index 

 Faun?e Novse-Zealandise." 



