METRIC SYSTEM OF MEASUREMENTS. & 



Robinson, were placed at his disposal. To Prof. E. L. Greene, whose 

 scholarly and critical knowledge of the flora of western California has 

 assisted in settling many difficult questions, are tendered most grate- 

 ful thanks. To these and to others upon whose authority identifications 

 or statements are published in the report, acknowledgment is made in 

 the proper places in the text. 



The metric system of linear measurements has been used throughout 

 the report, the itinerary excepted. To those not familiar with this 

 system, the following table, from " Tables for converting customary 

 and metric weights and measures," published by the U. S. Coast 

 and Geodetic Survey in 1890, will be useful. The measure called a 

 line, which has been in common use among botanists, is one-twelfth of 

 an inch and therefore nearly equal to 2 millimeters. 



Table for converting English and metric linear measures. 



1 = 



Inches to 

 millimeters. 



25.4000 



Feet to 

 meters . 



Miles tolulo- 

 meters. 



Meters to 

 inches. 



Meters to 

 feet, 



Kilometers 

 to miles. 



0. 304801 



1. 60935 



39. 3700 



3. 28083 



0.62137 



2 = 



50. 8001 



0.000601 



3.21869 



78. 7400 



6. 501 67 



1. 24274 



3 -: 



7G. 2001 



0.914402 



4. 8280 1 



118.1100 



9. 84250 



1. 86411 



4 = 



101.6002 



1.219202 



6. 43739 



157.4800 



13. 12333 



2.48548 



5 ;-- 



127.0002 



1.524003 



8. 04674 



190.8500 



16. 40417 



3. 10685 [ 



6 = 



152. 4003 



1. 828804 



9. 16006 



236. 2200 



19. 68500 



3. 72822 



7 = 



177. 8003 



2. 133G04 



11. 26543 



275. 5900 



22. 96583 



4.34959 



8 = 



203. 2004 



2 438405 



12.87478 



314. 9600 



26. 24667 



4. 97096 



9 — 



228. 6004 



2. 743205 



14.48412 



354. 3300 



29. 52750 



5. 59233 



ITINERARY. 



In compliance with the instructions of my commission, I proceeded 

 from Washington to Han Bernardino, California, reporting to Mr. T. S. 

 Palmer, acting chief of the expedition, December U6, 1890, From that 

 time until January 3, 1891, I was occupied in perfecting the botanical 

 outfit of the expedition, and in becoming familiar, as far as possible, with 

 the characteristic flora of the San Bernardino Valley. In both these 

 matters I was greatly aided by Messrs. S. B. and W. F. Parish and 

 Mr. W. G. Wright, well-known naturalists of San Bernardino. Mr. 

 Frederick Funston, of Carlyle, Kansas, was commissioned as my assist- 

 ant on the expedition. 



On the afternoon of January 3, 1891 , 1 left San Bernardino by the road 

 to Cajon Pass, camping the first night at Martin's ranch, the second at 

 Crowder's ranch, on the south slope of Cajon Pass, and on January 5 

 readied the railway station of Victor in the Mohave Desert. At the 

 summit of Cajon Pass, at an altitude of about 4,000 feet, below the 

 beginning of the evergreen "forests on the mountains, the characteristic 

 flora of the San Bernardino Valley abruptly gives way to the weird 



