BUREAU OF SCIENCE PRESS BULLETINS 



The numbers of the Bureau of Science press-bulletin series are 

 issued at irregular intervals in typewritten form to distribute 

 information of immediate local interest and are printed in some 

 of the Manila newspapers. The following numbers only are 

 available as printed pamphlets for free distribution: 



No. 32, revised. Birds in their economic relation to man. By 

 Richard C. McGregor. (Issued December 29, 1915.) 



No. 50. The manufacture of 96-degree sugar by the use of 

 open kettles (cauas) and the vacuum pan. By L. W. Thurlow 

 and J. F. Armstrong. (Issued in August, 1916.) 



No. 67. La savia de la palmera (nipa) como materia prima 

 para la fabrication del azucar en cantidades comerciales. For 

 D. S. Pratt, L. W. Thurlow, R. R. Williams y H. D. Gibbs. 

 (Issued in Spanish only in August, 1917.) 



No. 71. Philippine Bureau of Science charts. (Issued in 

 English on November 14, 1917; in Spanish in December, 1917.) 



No. 74. A comparison of the manufacturing units in some of 

 the centrals of the Philippine Islands. By L. W. Thurlow. (Is- 

 sued in English and in Spanish in December, 1917.) 



No. 75. Methods of clarifying cane juice. By L. W. Thur- 

 low. (Issued in English and in Spanish in December, 1917.) 



No. 85. Copra and coconut products. By Alvin J. Cox. 

 (Issued in English and in Spanish in February, 1918.) 



No. 86. Philippine fuels. By Alvin J. Cox. (Issued in 

 English and in Spanish in February, 1918.) 



No. 87. The Philippine Bureau of Science. By Alvin J. Cox. 

 (Issued in English and in Spanish in May, 1918.) 



