3H 



NATURAL SCIENCE. 



May, 



weight = 210 ; there are clearly three atoms of acid hydrogen present, 

 therefore three of hydrogen correspond to 210 parts by weight of 

 citric acid. Similarly, one part of acid hydrogen corresponds to sixty 

 of acetic acid CH : >, COOH, or three to 180. 



Ranunculace.e. 



Caltha sp. (Marsh Marigold) 



Crucifer.e. 



Brassicce — White Turnep (half grown) . . 



(very young) 

 another year : — 

 "Bulb" (1 in. diam 

 (fine roots) . . 



Swede Turnep " Bulb " (3 in. diar 

 ,, ,, (fine roots) . . 



Field Cabbage (thick roots) 

 „ ,, (fine roots) . . 



Garden Cabbage 



Brussels Sprouts 



Broccoli 

 Collards 



Rape 



Cochlearia armoracia (Horse-radish) 

 Alyssum sp. 



Cheiranthus clieiri (Wall-flower) 



Matthiola sp. (Stock)" 



Lunaria biennis (Honesty) 

 Caryophyllace.e. 



Lychnis sp. (Scarlet) 



Dianthus barbatus (Sweet William) 



Trop.eolace.e. 

 Tropa-olum sp. 



Leguminos.e. 



Trifoliutn incarnatum (pot grown) 



T. rep ens (White Clover) (pot grown) . . 



.. .. ,. (field grown) 



T. pratense (Red Clover) (pot grown) . . 



>. ,, ,, (field grown) . . 



Pisum sativum (Garden Pea) (pot grown) 



Vicia faba (Broad Bean) (pot grown) .. 



ROSACEiE. 



Geum sp. 



(field grown) 



Fragaria sp. (Strawberry) . . 



Onagrace/e. 



CEnothera biennis (Evening Primrose 



Umbellifer.e. 



Pastinaca sativa (Parsnep) 

 Dauctts carota (Carrot) 

 Petroselinum sativum (Parsley) 



Apium giaveolens (Celery) . . 



