GU A 



278 



GYP 



■ w 



guano. Brussels Sprouts were half! evergreen shrubs. Cuttings or seeds 

 destroyed by being planted in immedi- 1 Sandy peat and loam 



ate contact with nine parts earth and 

 one part guano. Geraniums were 



GUINEA-PEACH. Sarcocephalus. 

 GUINEA-PLUM. Farinarium excel- 



GUM ARABIC TREE. Acacia ara- 

 bica. 



GUM CISTUS. Cistus Ladaniferus. 



GUM TREE. Eucalyptus robusta. 



GUMMING. See Extravasated Sap. 



GUSTAVIA augusta. Stove ever- 

 green tree. Cuttings. Rich soil. 



GUZMANNIA tricolor. Stove her- 



greatly injured by liquid manure of| sum 

 guano, (four ounces per gallon,) but 

 " Plants of various sorts in pots, water- 

 ed only with guano water, half an ounce 

 to a gallon, have flourished astonish- 

 ingly; none have failed. These are 

 lessons which cannot be mistaken." — 

 Auctorium, 223. Mr. Rendle and other 



persons record, as the result of dearly- _ 



purchased experience, that where guano ' baceous perennial. Suckers. Rich 



, ,-i ,._!_, x?.._i -„i — 1 :-. 1 niould. 



GYMNADENIA. Four species. 

 Hardy orchids. Division. Sandy loam 

 and peat. 



GYMNEMA. Four species. Stove 

 evergreen twiners. Cuttings. Loam 

 and peat. 



GYMNOCLADUS canadensis. Hardy 

 deciduous tree. Cuttings. Open loamy 

 soil. 



G Y M N G R A M M A . Fourteen 

 species. Stove herbaceous perennials. 

 Division. Loam and peat. 



GYMNOLOMIA. Three species. 

 Stove evergreen shrubs. Cuttings. 

 Loam and peat. 



GYMNOSTACHYS anceps. Green- 

 house herbaceous perennials. Suckers. 

 Peat and loam. 



GYNANDROPSIS. Six species. 



has failed to be beneficial, or has been in 

 jurious, it has been applied in quantities 

 too powerful for the plants to bear. In 

 a liquid state, half an ounce per gallon, 

 and given to growing plants once a week, 

 it never fails to be productive of vigour. 



There is reason to fear that all 

 the advantages attributed to Guano, 

 may not be realized. That it has pro- 

 duced striking effects on certain crops 

 cannot be questioned — especially on 

 grass, wheat and Indian corn ; but we 

 are far from subscribing to the opinion 

 of those who in their zealous praise of 

 this new fertilizer, assert that it is 

 cheaper to buy it, than haul manure 

 from the barn-yard to the fields ! 



There are many crops on which it 

 appears to produce but little effect: 

 The writer has used over two tons of 



whatwasreputed to be the best Peruvian i Hardy or stove annuals and biennials. 



guano, in experiments, chiefly 

 Kitchen garden vegetables carefully no- 

 ting the quantity applied, mode, &c., but 

 in nearly every instance without per- 

 ceiving any important result. — Doubt- 

 less much depends on the soil, and the 



Seeds. Sandy loam. 



GYPSUM, or Plaster of Paris, is a 



sulphate of lime, composed of^ — 



Sulphuric acid 43 



Lime 33 



Water 24 



presence or absence of those constitu- ! It has been employed advantageously 

 . L- 1 -1 J :_ ...1 „„„.„„„.. ^ »„ >u., >...„;„ »„j „..f..«n of 



ents which abound in guano — where 

 they already exist in the soil, in suf- 

 ficient quantity, no benefit can result 

 from its application. 



GUATTERIA. Five species. Stove 

 evergreen shrubs or trees. Cuttings. 

 Loam, peat, and sand. 



GUAVA. Psidium. 



GUAZUMA. Three species. Stove 

 evergreen trees. Cuttings. Peat and 

 loam. 



GUELDER ROSE. Viburnum opulus. 



GUERNSEY LILY. Nerine sar- 

 niensis. 



GUETTARDA. Seven species. 

 Stove evergreen trees. Cuttings. Peat 

 and loam. 



GUILANDINA. Two species. Stove 



as a manure to the turnip and potato, at 

 the rate of 3 cwt. per acre. Potato sets 

 are frequently rolled in it when pulver- 

 ized. It has been recommended to be 

 sprinkled in stables, and to be mixed 

 with dunghills, " to fix the ammonia," 

 as it is popularly termed. That am- 

 moniacal fumes are given out from the 

 urine of horses, and from decomposing 

 dungheaps, is true ; but it is quite as 

 true, that sulphate of lime thus em- 

 ployed will not detain a thousandth part 

 of them, owing to the sulphuric acid 

 having a greater affinity for the ammonia 

 than lor lime, and carbonic acid having 

 a greater affinity for lime than for am- 

 monia. And it is also true, that all the 

 ammonia lost in fumes from a dunghill 



