l:\i TKKIoM> OF HI I 



twenty-tour hours to a distance of 5-10 C.m. through tin- leat- 

 ti--ue. Infection of leaves and bulbs i.f i -omnion onion with 

 the Same Jlm-Hlii* was al.-o -nere-st'ully carried i.ut, and tin- same 

 symptoms of disease followed. 



SuraiitT, in his " Handbuch." de-cribe- a bulb-rot said to In- 

 due to bacteria: but whether it In- tin- -ame disease Bfi thi^ 

 or not we cannot say. 



Bacterial Disease of Beans. 



Halsted 1 describes a disease on cultivated beans, which cai 

 considerable lo-s in the I'liited State-. Bacteria were ]'ie-i-nt in 

 lurxe numbers in all diseased parts, but to \\hat extent they 

 were responsible for the disease could not be exactly determined. 



IV. THK PAT Hot; KM i .\l.i. A K. 



The ( 'yaliophyceae or Sehi/oph\ ceae, though x rllrl ' :l H. v pl:i ( '''d 

 with the l>acteria in the ^rou}) of the Schi/ophyie>. are heit- 

 included with the true Al-ae on account of the -real resemblance 

 in their mode of life when they play the pan <>\' 

 or parasites. 



The I>iaiomaeeae contain no endopliytic species. 



The Al^ae differ from the groups of the Fun-i, .M yx 



and Si-hi/oniyeet.-, in their possession of chlorophyll and their 



power of a-v-ilnilalioii. The relationship of the Aluae to othei 



living or;jani-m< may be expressed under the following head- 



I. Symbi">i- of Al^ac with Kun-i. (Lidiei 

 II. Symbio>i- o|' Al'^ae with animal-. 

 III. Symbio>i- ol' Al'jae with chlorophyUoilS plant-. 

 I") Kpiphyte-. 



(//) Klliloj.liyle-. 



1. Inhabitants of free -paei-^ in other plant-. 

 '_'. Inhabitant- of doniatia. 



I Y. Tara-iti-lil of the flldopll\ lie Al-ae. 

 I") In ivlation to animal-, 

 (/i In relation |o plaiil-. 

 1 . Inhabitant- of the eell \\all. 

 L'. hdiabitant- of t he , ,-H ca\ : 



:!. I i.--i ro\ ei - of t issues as a wln-lr 



i 



A ./ I I - /.' I - 



