412 Miscellaneous Intelligence. 



Before the appearance of the second part of the Bibliography 

 M. Houzeau died, and an interesting biography of him by Mr. 

 Lancaster is given as introduction thereto. M. Houzeau's life in 

 this country in 1858-1866 and his life in Jamaica form portions 

 of Mr. Lancaster's story. The subjects covered by this part are 

 Biography and Correspondence; Didactic and general works; 

 Spherical Astronomy ; Theoretic Astronomy. 



The third part of vol. I, which is in press, will contain Celestial 

 Mechanics ; Astronomical Physics ; Practical Astronomy ; De- 

 scriptive Astronomy ; Systems. The second volume (already 

 published) contained the bibliography of Memoirs and Notices ; 

 the third volume will be devoted to Observations. 



Y. Miscellaneous Scientific Intelligence. 



1. National Academy of Sciences. — Papers entered to be read 

 at the April meeting, 1890. 



H. C. Wood: Effects of the inhalation of nitrogen, nitrous oxide, oxygen, and 

 carbonic acid upon the circulation : with special reference to the nitrous oxides, 

 anaesthesia and asphyxia. 



A. A. Michelson: Application of interference methods to astronomical meas- 

 urements. 



S. H. Scudder: Physiognomy of American Tertiary Hemiptera. 



D. P. Todd : Totality of the eclipse of 1889, December 22. 



W. K. Brooks : The budding of Salpa considered in relation to the question of 

 the inheritance of acquired characters. 



GL Br<Jwn Goode and Tarleton H. Bean: Recent advances toward a knowl- 

 edge of the fishes of the great oceanic depths. 



S. C Chandler: A system of classification of variable stars. 



H. A. Rowland: On the spectrum of metals. 



S. P. Langley: On the cheapest light. 



R. Piimpellt: Relation of secular disintegration to certain crystalline and 

 transitional schists ; Structure of the Green Mountains. 



T. Gill: The interrelationships of the Ichthyopsida ; the Notacanthoid Fishes 

 as representatives of a peculiar order ; the Halosauroid Fishes typical of a special 

 order. 



Ira Remsen : Researches on the double hahdes ; researches on the sulphinides. 



2. Great depth in the South Pacific Ocean. — The bathymetric 

 map published in the writer's work on Volcanoes, registers the 

 depth of 4428 fathoms just south of the Friendly Islands. A 

 bulletin from the Hydrographic Department of the Admiralty 

 dated January, 1890, contains among the soundings of H. M. S. 

 Egeria in 1889, one of 4530 fathoms to the southeast of that of 

 4428 fathoms, which is thus far the deepest found in the South 

 Pacific. The records are as follows: 



Lat. 











Fathoms. 



Temp. «. 

 at bottom. 



19° 



31' S. 



173° 



40' W. 



2235 



34-6 volcanic mud. 



19 



16 



173 



38 



1795 



35-0 Globig. ooze. 



18 



24 



173 



02 



2525 



„._ j chocolate clay; Radi- 

 ( olarian ooze, pumice. 



17 



56f 



172 



m 



3092 



34*5 chocolate clay. 



17 



04 



172 



14i 



4530 



wire parted. 



Between the Phoenix and Union Groups, the following sound- 

 ings were obtained : 



