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558 



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Johnson, Samuel W. 7. Agricultural Chemis- 

 try Soil-analysis : Notice of the Agricultural 

 Chemistry of the Geological Surveys of Ken- 

 tucky and Arkansas. Silliman, Journ. XXXII., 



1861, pp. 233-252. 



8. On Soil Analysis. Chemical News, V., 



1862, pp. 156-158, 169-170, 197-199, 226-227, 

 244-245. 



Johnson, Samuel IV., and O. I). Allen. On the 

 equivalent and spectrum of Cajsium. Silliman, 

 Journ. XXXV., 1863, pp. 94-98 ; Chemical 

 News, VII., 1863, pp. 110-111 ; Phil. Mag. 

 XXV., 1863, pp. 196-200 ; Fresenius, Zeitschr. 

 Anal. Cheniie, II., 1863, pp. 4-9. 



Johnson, Samuel W., and Franklin B. Hough. 

 On the discovery of Sulphuret of Nickel in 

 Northern New York. Silliman, Journ. IX., 

 1850, pp. 287-288. 



Johnson, Thomas. Some observations on ,the 

 Solar Eclipse, 7th September 1820. Edinb. 

 Phil. Journ. III., 1820, pp. 392-394. 



Johnson, Walter R. Observations on an appa- 

 ratus to illustrate the composition and resolution 

 of forces, and to measure the power obtained 

 by certain parts of machinery operating on this 

 principle. Franklin Inst. Journ. III., 1829, 

 pp. 354-358. 



2. Observations on the electrical charac- 

 ters of Caoutchouc or Gum Elastic ; with some 

 applications of which they are susceptible. 

 Philad. Aead. Nat. Sci. Journ. VI., 1829, pp. 

 244-255 ; Silliman, Journ. XX., 1831, pp. 404- 

 406. 



3. On the relation between rolling and 



dragging friction. Franklin Inst. Journ. V., 

 1830, pp. 57-69. 



4. Description of an apparatus, called the 



Rotascope, for exhibiting several phenomena, 

 and illustrating certain laws of rotary motion. 

 Franklin Inst. Journ. VIII., 1831, pp. 361-366; 

 Silliman, Journ. XXI., 1832, pp. 265-280. 



5. Observations and experiments on the 

 rapid production of steam in contact with 

 metals at a high temperature. Silliman, Journ. 

 XIX., 1831, pp. 292-299 ; XX., 1831, pp. 308- 

 317 ; Dingier, Polytechn. Journ. XLIV., 1832, 

 pp. 439-442 ; Roy. Inst. Journ. I., 1831, pp. 

 613-614 ; II., 1831, pp. 393-395. 



- 6. Remarks on the strength of cylindrical 

 Steam Boilers. Franklin Inst. Journ. X., 1832, 

 pp. 149-154; Sillimau, Journ. XXIII., 1833, 

 pp. 68-75. 



7. Observations and experiments on the 



variable rapidity of action between water and 

 hot iron. Silliman, Journ. XXI., 1832, pp. 71- 

 85. 



8. Experimental inquiries respecting heat 



and vapour, with some practical applications. 

 Silliman, Journ. XXI., 1832, pp. 304-314. 



Johnson, Walter R. 9. Description of an in- 

 strument called the steam pyrometer. Silliman, 

 Journ. XXII., 1832, pp. 96-105. 



1O. On the economy of fuel with reference 



to its domestic applications. Silliman, Journ. 

 XXIII., 1833, pp. 318-337. 



11. On the Eupatorium Huaco. Silliman, 

 Jouru. XXIV., 1833, pp. 279-285. 



12. On the methods of determining and 



calculating the specific heats of certain solids, 

 with some precautions to be observed in the ex- 

 periments. Franklin Inst. Journ. XIV., 1834, 

 pp. 306-317 ; Silliman, Journ. XXVII., 1835, 

 pp. 267-280. 



13. Observations on some experiments in 



electricity. Silliman, Journ. XXV., 1834, pp. 

 57-68. 



14. On the fusing point of zinc, and a 



reference to the relation between the tenacity 

 and the fusibility of the metals in general. 

 Philad. Acad. Nat, Sci. Journ. VII., 1834-37, 

 pp. 200-216. 



15. Observations on the effects of a re- 



markable atmospheric current or storm as wit- 

 nessed on the day following its occurrence. 

 Philad. Acad. Nat. Sci. Journ. VII., 1834-37, 

 pp. 269-281. 



16. On the apparent anomaly observed in 

 the rotation of liquids of different specific gra- 

 vities when placed upon each other. Silliman, 

 Journ. XXVII., 1835, pp. 84-88. 



17. Experiments on the adhesion of iron 



spikes of various forms, when driven into differ- 

 ent species of timber. Silliman, Journ. XXXII., 

 1837, pp. 34-45 ; Franklin lust. Journ. XIX., 

 1837, pp. 281-292. 



18. Analysis of some of the minerals found 



at Karthaus and Three Runs, on the west 

 branch of the Susquehanna river, Clearfield 

 County, Pennsylvania. Franklin Inst. Jouru. 

 XXIII., 1839, pp. 73-80. 



19. Examination of some of the anthracites 



found in Sugar Loaf Township, Luzerne County, 

 Pennsylvania. Franklin Inst. Journ. XXIV., 

 1839, pp. 73-77. 



20. Analysis of some of the anthracites 



and iron ores found on the head waters of 

 Beaver Creek, in the counties of Luzerne, 

 Northampton, and Schuylkill, Pennsylvania. 

 Franklin Inst, Journ. XXIV., 1839, pp. 289- 

 298. 



21. Experiments on two varieties of iron, 



manufactured from the magnetic ores at the 

 Adirondack iron works, Essex County, N. Y. 

 Silliman, Journ. XXXVI. , 1839, pp. 94-105; 

 Franklin Inst. Jouru. XXIII., 1839, pp. 1- 

 10. 



