DEPARTMENT REPORTS. 175 



Prof. R. C. Carpenter. 

 Snrveyors and Civil Engineers. 



Hon. liohert Manning, Secretary, Boston, Mass. 



Transactions of Massachusetts Horticultural Society, 1880. 

 Transactions of Massachusetts Horticuitural Society, parts I and 11, '81. 



Hon. H. 8. Euans, Secretary, Montreal. 

 Transactions of Montreal Horticultural Society. 



Hon. Justin S. MorrilV. 

 Tariff Speech of. « 



Natiojial Association of Wool Mamifacturers. 

 The Premises of Free Trade Examined. 



War DejKirtnient, Washington, D. C. 

 The Keduction of Air Pressure, 



Hartford Steam Boiler Company, Hartford, Conn. 

 The Locomotive. 



Sergeant J. P. Finley, Washington, D. C. 



Tornadoes, Character of GOU. 



Prof. Simon Neiucomh, Anna^jolis, Md. 



Velocity of Light, vol. 1, part 3. 



Hon. Wm. E. Chandler, Secretary of Navy, Washington, D. C. 



Venus, Listructions for Observing the Transit, December 6, 1883. 

 List of Pamphlets, presented by Sir John Bennet Lavves, Bart, of St. 

 Albans, England. 



Lawes and Gilbert. 



On the Amount and Composition of the Kain and J3rainage Waters of Rath- 

 amsLead. 



liohert Warrington. 



On the Determination of Nitric Acid in Soils. (From a report of experi- 

 ments made in Ralluimstead laboratory.) 



Determination of Nitric Acid as Nitrous Oxide by Eeaction with Ferrous 

 Salts. (Experiments made in Rathamstead laboratory), — by Robert Warring- 

 ton. 



Note on the Appearance of Nitrous Acid during tlie Evaporation of Water. 

 (From report of experiments made in Rathamstead laboratory), — by Robert 

 Warrington. 



On the Determination of Carbon in Soils. (Report as above), — by Warring- 

 ton and Peal^e. 



On tiie Determination of Nitric Acid by means of Indigo, with special refer- 

 ence to Wtiter Analysis. (Report as above). 



On the Determination of Nitric Acid as Nitric Oxide by means of its Action 

 on Mercury. (Report as above). 



On Nitrification, Part I. 



'' U. 

 "Memoranda of Origin, Plan, and Results of the Field and other Experi- 



