July 14, 1870. ] 



JOUBNAL OP HORTICULTURE AND COTTAGE GARDENER. 



25 



large enough to supply the wants of all the paper-mills in the 

 country ; and it produces a fibre of the finest quality, at a 

 price that will bring it into lively competition with Esparto 

 Grass. Of all the substances hitherto suggested as a substitute 

 for rags, the best practical judges regard this as the most de- 

 sirable. One important feature in its use is that it necessitates 

 little alteration in the ordinary machinery of paper-mills, while 

 it will in a great measure overcome the difficulty of our river 

 pollution caused by Esparto. — (Bookseller.) 



STRAWBERRIES NOT FRUITING. 



In reference to the article at pages 7 and 8 of the Journal of 

 July 7th, and the invitation of "R. P.," the author, to others 

 to give their experience, I can attest and endorse his observa- 

 tions throughout. After many failures and close attention I 

 arrived at exactly " R. P.'s " conclusions. It is nonsense to 

 buy or plant the runners of any variety of Strawberry indis- 

 criminately if fruit is expected. The runners, to make fertile 

 plants, must be the progeny of fertile and bearing stools or 

 parents. 



My practice is to plant tbinly, never nearer than 12 or 

 15 inches asunder, unless for drawing and thinning-out in the 

 spring to that distance, as some plants will necessarily fail 

 during winter ; but ultimately I allow only one plant to every 

 12 or 15 inches square. Always in the blooming season, May 

 and Jane, I root out any sterile plant I find, lest a barren 

 stool should go unobserved and produce barren runners. Thus 

 I am sure in the planting season, early in August, in taking 

 runners, to have them off fertile stools. I plant in strong 

 brown soil, trenched and manured as Potato land, and top- 

 dress any standing beds every autumn with rotten litter, after 

 having cleared off runners and weeds, just as with meadow 

 land. I renovate my beds by trenching and planting runners 

 about every third or fourth year, just as I fancy the stools are 

 exhausted or scrubby. 



This treatment brings fair crops, though seasons vary — as 

 spring and summer are mild, showery, and bright with sun, 

 or chill, dry, and dull ; and varieties differ too, though suitable 

 sorts are by patience ascertained and alone grown. That, every 

 Strawberry-grower must find out as he may be located — north, 

 seuth, east, or west. — Reader. 



IRIS GERMANICA AND THE ENGLISH AND 



SPANISH IRISES. 

 In No. 483 I see a notice of English and Spanish Irises 

 which were sent you by Messrs. Birr & Sugden. I purchased 

 a number of varieties of the English Iris of the same firm last 

 autumn, which are now in full bloom, and very beautiful they 

 are and much admired, but, although fine, I think they are 

 surpassed by Iris germanica. I have a collection of these, 

 numbering in all about eighty or ninety varieties, and nothing 

 could be more lovely than they were during the month of May. 

 I consider this a neglected flower in one sense, for go where 

 you will you seldom find it grown, or, if at all, not to any 

 extent, and why I cannot tell, as for elegance of form and 

 brilliancy of colour there is, in my opinion, nothing to excel 

 it at the time of year that it is in flower, and when done 

 flowering, its sword-like leaves make a telling variety of form 

 in the mixed border. I was very pleased to see a dozen or so 

 of flowers of excellent colours exhibited at one of the May 

 shows at the Crystal Palace, and still more pleased to see that 

 they attracted much and deserved attention. Let my brother 

 amateurs get a few, and I feel certain that after blooming them 

 one season they will try and enlarge their collection, not only 

 of them — the Iris germanica, but the English. Spanish, and 

 the many other hardy sorts. — Harrison Weie, Weirleigh, Kent. 



The Production of Ozone.— We have heard so much of late 

 years about the beneficial influence exerted by the presence of 

 ozone in the atmosphere, that even nonscientific readers may 

 like to know how it can be artificially produced. Hitherto, 

 electricity, phosphorus, and permanganate of potash have 

 been the recognised sources of production, but Professor Mante- 

 gazza has discovered that it is developed by certain odorous 

 flowers in a still greater amount. A writer in Nature states 

 that most of the strong-smelling vegetable essences, such as 

 Mint, Cloves, Lavender, Lemon, and Cherry Laurel, developea 

 very large quantity of ozone, when in contact with atmospheric 

 oxygen in light. Plowers destitute of perfume do not develope 



it, and generally the amount of ozone seems to be in propor- 

 tion to the strength of the perfume emanated. Professor 

 Mantegazza recommends that, in marshy districts and in places 

 infested with noxious exhalations, strong-smelling flowers 

 should be planted around the house, in order that the ozone 

 emitted from them may exert its powerful oxidising influence. 

 So pleasant a plan for making a malarious district salubrious 

 only requires to be known to be put in practice. 



PLANTS FLOWERING IN JUNE. 



2. Mimuluscupreus 



luteus 



maculosus 



moschatus 



cardinalis 

 Oxalis corniculata rubra 

 Clielone barbata coccinea 

 Achillea regyptiaca 



aurea 



Ptarmica 



s errata rl.-pl. 



tomentosa 

 Lithospermum frnticosum 

 Dianthus Caryophyllus 



creams 



deltoides 



b arbutus 



Marie Pare 



Heddewigi 



tiinbriatus 

 Aconitum Napellus 



versicolor 



6. Catananche cierulea 



Linum perenne 



Lewi aii 



narbonense 



alpinum 

 Centranthus ruber 

 Myosotis alpestris 



pala stris 



sylvatiea 

 Agatho&a crelestis 

 Clematis integrifolia 

 Aetata spicata 

 Camassia esculenta 

 Campanula grandis 



latifolia 



glomerata 



carpatica 



gargauica 



muralis 



nitida 



persicifolia 



coronata alba 

 Hedycbiam coronarium 

 Lathyrus grandiflorus 

 Nepeta violacea 

 Lilium candidum 



cha'cedonicam 



Martagon 



tigrinum 

 Oenothera pumila 



Fraseri 

 Lychnis coronaria 

 Heracleum giganteum 

 Lupinus albus 



polyphyllas 

 9. Heliantbemum vulgare 

 Linaria Cymbalaria 

 Orchis f oliosa 



maculata 



pyramidalis 



ustulata 

 Pentsteinon glabrum 



ovatiim 



Seoul eri 



procerum 



venuatum 



gentianoides 

 Phlomis Russelliana 

 Hemerocallis fulva 



graniinea 

 Convallaria bifolia 

 Anthericum Liliago 

 Hieracium aurantiacum 



Pilo sella 

 Inula glandulosa 

 Polemonium cseruleum 



grand iflorum * 



Kichardsoni 

 13. Physalis Alkekengi 

 Saxifraga Cotyledon 



Geum 



pyramidalis 



roeularis 

 Stenactis speciosa 



13. Veronica frnticulosa 



gentianoides variegata 



incana glauca 



multinda 

 Thymus vulgaris 



lanuginosus 



Serpyllum albus 

 Alchcmilla alpina 

 Crucianella stylosa 

 Tritoma Uvaria 

 Trollius americann3 

 Allium Moly 

 Iris, various 

 16. Epilobium angustifolium 

 Corydalis glauca 

 Delphinium Barlowii 



formosurn 



Hendersoni 

 Alyssum maritimnm 

 Ruscua Hypoglossnm 

 Genista sagitalis 



tinctoria 

 Ajuga genevensis 



reptans 

 20. Spiraea Filipendula 



japonica 



speciosa 

 Aquilegia vulgaris 



Slanneri 



glandulosa 

 AlysBum saxatile 

 Ruta graveolens 

 Tradescantia cterulea 



virginica 

 Erigeron Villarsii 

 Helianthemum vulgare 

 Aster alpinns 

 Sagina procumbens 

 Sednm grandiflorum 



kamtschaticurn 



monstrosum 

 • neglectum 



reflexum 

 22. Erinus alpinus 



Sempemvum rnontanum 



tectorum 

 Solidago cambric a 

 Campanula Medium 



Trachelium 

 Menyanthes trifoliata 

 Aubrietia grceca 



Mooreana 

 25. Sedum acre aizoideum 



dasyphyllum 



Forsterianum 



glaucum 

 Ligustrum vulgare 

 Ilex Aquifolium 

 Salvia bicolor 

 Viola tricolor 



comuta i 



lutea 

 Lycbnis Githago 

 7. Schizo&tylis coccinea 

 Hesperis matronalis 

 Stachys lanata 

 Sanibucus nigra 

 Anchuaa italica 

 Convolvulus mauritaniens 

 Potentilla atrosanguiuea 



Hopwoodiana 



sulphurea 

 Geum coccineum 



rnontanum 

 30. Campanula pulla 



Hostii 

 Hottonia palu stria 

 CEnothera Sellovii 



macro car pa 

 Verbascum phcenieeum 

 Lychnis Eaageana 

 Antirrhinum majus 

 Iberis Tenoreana 

 Polygala Chsema3buxns 

 Gypsophila elegana 

 Lupinus nanus 



-M. H., Acklam Hall, Hiddlesbrough-on-Tees. 



ARCHIMEDEAN LAWN MOWER. 



I have read with interest all that has been said in the Jour- 

 nal about the Archimedean lawn mower; and now I wish to 

 say a few words concerning that machine, having had one in 

 use here all this season. 



"D. A.," Norfolk, writing in praise of the Archimedean, 

 says, " I approve of the machine for the following reasons: — 

 First, that it will do more work and do it with far greater ease 

 than any other I have seen." I imagine " D. A." has not used 

 many mowers, if he had I am quite sure he would not say the 



