424 Transactions, — Chemistry. 



Lab. No. 



4. Puriri, Auckland ... ... ... ... ... 1404 



5a and i. Waiwera, Auckland 1322,1820 



6. Aorangi, Auckland ... ... ... ... ... 1660 



7. Eangitaika Kiver, Bay of Plenty ... ... ... 187 



8. White Island 232 



9. Waimangeao, Bay of Plenty ... ... ... 1524 



10. Eotorua, Auckland ... ... ... ... ... 1859i/i6 



11 and 11a. Taupo, Auckland 1406 1/12, 1500 



12. Spring near lake on west side of Waikato Eiver ... 252 



13. Wallingford, Wellington ... 56 



14. Pahua, Wellington 1211, 1907 



15. Northern boundary of Wellington .. . ... ... 1567 



16. Akitio, Wellington 1758 



17. Hanmer Plains, Nelson 500. 



18. Lake Sumner, Canterbury ... ... ... ... 1495 



19. Gibson Station, Southland 1668 



1. Aluminous Water. 



The first specimen is from Wangaehu Eiver, Onetapu Desert, in the 

 Auckland provincial district, and was contributed by Mr. Mair on 13th 

 January, 1868. It is persistently turbid, and has a very sour taste. The 

 quantity of fixed matters present in one gallon of it are 456 grains, and 

 then' composition is mainly that of common alum. A large quantity of 

 magnesium and ferrous chloride is also present. 



2. Mahurangi Water. 



From the springs near Mahurangi, Auckland provincial district, three 

 samples were collected by Mr. Justice Gillies in January, 1868 : — 



a. Cold spring, contains 74*0 grains of solid matter per gallon. 



b. Hot sprmg, „ 140-4 „ „ „ ,, ,, 



c. Hottest spring, ,, 141-6 ,, ,, ,, ,, ,, 



The solid residues of a and b when analyzed proved to consist mainly 

 of sodic and magnesium chlorides. None, however, of these samples were 

 fully analyzed for want of material. 



Mr. Justice Gilhes has stated that the coolest of the springs had a 

 teraperature of 110° Fahr. at the time he obtained these samples; and 

 that he "believed that many of our Auckland residents had derived much 

 good from bathing in these springs /or tlie purpose of curing rheumatism."'^ 



3. Acidulous Water. 

 An acidulous mineral water from the hot springs at the Bay of Islands, 



* Trans. N.Z. Inst., I., p. 71. 



