2 Transactions of the Society. 



(see Note p. 20) and slides of the other forms prepared, but owing 

 to the absence of certain species on the slides, which I felt sure 

 must be present in the material, I went carefully through it again,, 

 and filled in many omissions. The material weighed (alter 

 washing) a little over 2^ drams avoirdupois. 



I have to thank Messrs. Heron- Allen and Earland for assistance 

 in the identification of some species, and in the preparation of the 

 MS. ; Mr. Joseph Wright, of Belfast, for lending me parts of the 

 late Mr. Millett's album of drawings of published figures ; and my 

 daughter for finally writing out the MS. 



H. S. 



The scanty details furnished in the title of the paper constitute 

 all the available records of the dredging, but are sufficient for a 

 recoustitution of its origin. 



The locality lies off the N.E. corner of the coast of New 

 South Wales, roughly 250 miles north of Sydney, and more 

 than 300 miles south of the extremity of the Great Barrier Reef. 

 The distance from the coast-line is over 50 miles, which, coupled 

 with the depth of 465 fathoms, show that the material was taken 

 from the continental shelf beyond the mud line or limit of 

 terrigenous deposits. The coast in this area slopes rapidly down 

 to the " Thomson Basin," an isolated deep area lying between 24° 

 and 52° S. and 149* and 165° E., and having a maximum depth of 

 3000 fathoms. 



" Pteropod Oozes " are found only in tropical and sub-tropical 

 areas at a considerable distance from, land, and with a depth of 

 less than 1500 fathoms. The late Sir John Murray and G. V. Lee 

 in their report on " The Depth and Marine Deposits of the Pacific '^ 

 (Memoirs Mus. Comparative Zoology, 1909, vol. xxxviii., No. 1» 

 p. 155), draw attention to the absence of this type of deposit in 

 the Northern and Eastern Pacific, and its extremely limited 

 distribution in the few localities where it is to be found, viz. in 

 the neighbourhood of the Great Barrier Reef, the Fiji, Paumotu 

 and Marquesas groups. 



H.-A. & E. 



