CONTENTS. 



PAGE 



I. Revision of the Atomic Weight of Antimony. By Josiah 



P. Cooke, Jr 1 



H. Re-examination of some of the Haloid Compounds of Antimony. 



Josiah P. Cooke, Jr 72 



III. Note on Grassmami's Calculus of Extension. By C. S. Peirce 115 



IV. On the Young Stages of some Osseous Fishes. By Alexan- 



der Agassiz 117 



V. Preliminary Work on the Determination of the Law of the 

 Propagation of Heat in the Interior of Solid Bodies. 

 By B. O. Peirce, Jr., and Edward B. Lefavour . . 128 

 VI. Probabilities at the Three-hall Game of Billiards. By Ben- 

 jamin Peirce 141 



VII. The Dimensions and Proportions of the Temple of Zeus at 



Olymjiia. By CJiarles Eliot Norton 145 



VIII. On the Photographic Action of Dry Silver Bromide Collodion, 

 Sfc, to Rays of Solar Light of Different Refrangibility . 



By Robert Amory, M.D 171 



IX. On the Longitude of Waltham, Mass. By Leonard Waldo 175 

 X. The Moon's Zodiacal Light. By L. Trouvelot . . . . 183 

 XI, Undulations observed in the Tail of Coggia's Comet, 1874. 



By L. Trouvelot 185 



XII. Sudden Extinction of the Light of a Solar Protuberance. 



By L. Trouvelot . 187 



