Andrew. — On the Clarendon Phospliate-deposits. 471 



6. Wilson's Quarry. — The phosphate is here very low-grade, 

 and is not worked. It consists of a phosphatic clay, in places 

 35ft. high, which contains about 20 percent. Ca 3 (P0 4 ) 2 . De- 

 siccation has caused the clay to crack irregularly, and many 

 of the fissures are now being filled up with white incrusta- 

 tions of phosphorite. The deposit rests on the irregular sur- 

 face of the limestone, and is accompanied by phosphatic 

 greensands. 



7. Kapiti Quarry. — Phosphate is found here ; it is not 

 worked, and its mode of occurrence is not clear. 



8. Strain's Farm. — Phosphate is reported from here, but 

 was not seen by me. 



9. Macdonald's Outcrop. — Some few tons of phosphate have 

 been mined from here ; it rests on the glauconite sands, and a 

 face about 50 ft. long and 10 ft. high has been cleared. 



S.E 



Millburn Phosphate-workings : Section right-angles to face. 

 a. Brown sands, c. Rock- phosphate, d. Limestone. 



10. Millburn Company'' s Phosphate-workings. — A consider- 

 able amount of work has been clone here. A great deal of the 

 phosphate is of the grit variety, but the other forms are also 

 found ; incrustations of phosphorite are common. The deposit 

 rests on the irregular surface of the limestone ; bones and teeth 

 are found in it, among the former being the lower jaw of a Balamid 

 whale. A large surface-slip has taken place, resulting in masses 

 of phosphate sliding down the hillside to a level 50 ft. below : 

 these masses are easily mined, and have been worked to a con- 

 siderable extent. 



