TABLE OF CONTENTS. 



Akticle I. (1171.) Index to the Literature of Thallium, 

 1861-1896. By Martha Doan. 1899. Pp. 26. 



Article II. (1173.) Index to the Literature of Zirconium. 

 By a. C. Langmuir and Charles Basker- 

 viLLE. 1899. Pp. 29. 



Article III. (1253.) A Select Bibliography of Chemistry, 

 1492-1897. By H. C. Bolton. Section VIII. 

 Academic Dissertations. 1901. Pp. iv, 534. 



Article IV. (1258.) On the Cheapest Form of Light. By 

 S. P. Langley and F. W. Very. 1901. Pp. 

 20. Plates I-III. 



Article V. (1259.) List of Observatories. 1902. Pp. 48. 



Article VI. (1312.) Index to the Literature of the Spec- 

 troscope, 1887-1900. By Alfred Tucker- 

 man. 1902. Pp. iii, 373. 



Article VII. (1313.) A Bibliography of the Analytical 

 Chemistry of Manganese, 1785-1900. By 

 Henry P. Talbot and John W. Brown. 

 1902. Pp. viii, 124. 



Article VIII. (1314.) Chemical Societies of the Nineteenth 

 Century. By H. C. Boltok. 1902. Pp. ii, 15. 



(v) 



