CONTENTS 



No. 1, January, 1916 



Page. 



Heise, George W. Notes on the water supply of the city of Manila.. 1 



Brill, Harvey C, and Agcaoili, Francisco. Philippine beeswax 15 



King, Albert E. W. The pozzuolanic properties of Meycauayan 



volcanic tuff 19 



One text figure. 



Heise, George W., and Aguilar, R. H. The oxygen-consuming 

 power of natural waters 37 



No. 2, March, 1916 



Williams, Robert R. The chemistry of the vitamines 49 



Brill, Harvey C. Diethylsuccinosuccinate: II, A study of the ab- 

 sorption spectra of some derivatives 59 



Four text figures. 



Brill, Harvey C. Hydnocarpus venenata Gaertner: False chaul- 



moogra - 75 



« 



Brill, Harvey C. The salicylic acid reaction of beans 81 



No. 3, May, 1916 



Agcaoili, Francisco. Some vegetables grown in the Philippine 



Islands 91 



Brill, Harvey C. Ipel, a coffee substitute: Leucaena glauca (Lin- 

 nasus) Bentham 101 



Heise, George W., and Aguilar, R. H. The chemical purification of 



swimming pools 105 



Two text figures. 



Heise, George W. Note on the tidal variation of springs and deep 



wells in the Philippine Islands 125 



Thurlow, L. W. Manufacture of lime in the Philippine Islands.... 129 

 Two plates. 



No. 4, July, 1916 



Heise, George W., and Clemente, Amando. The stripping and the 



analysis of galvanized iron 135 



Witt, J. C. The testing of galvanized iron 147 



Two text figures. 



Witt, J. C. Comments on the analysis of Babbitt metal 169 



Arguelles, Angel S. Galvanized-iron roofing in the Philippines 177 



Heise, George W., and Clemente, Amando. The detinning and 



analysis of tin plate 191 



Review 201 



No. 5, September, 1916 



Witt, J. C. Philippine paving-brick materials : A preliminary report 203 



One plate and 1 text figure. 



Pratt, Wallace E. Philippine lakes 223 



One plate and 2 text figures. 



Lednicky, V. E. The Palidan-slide mine 241 



Goldsberry, J. P. Eruption of Bulusan Volcano 251 



iii 



