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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 77
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A botanical analysis of a late-Pleistocene and Holocene profile in the Rhine Delta Naturalis
Florschütz, F.; Jonker, F.P..
The post-Glacial history of the forests in the Netherlands has been reconstructed fairly well by pollen analysis of several bogs. At the same time stratigraphical investigations shed some light on the way in which these bogs had been built up, i.e. on the plants by which, in the various forest periods, peat was formed. Though these data are quite interesting, they do not give a good impression of the entire synchronal herbaceous flora, as they are limited to the peatbuilding plants. As yet very little is known of the rest of the vegetation (water-, marsh- and land-plants) of the late-Pleistocene and Holocene periods. We must look for their remains in other deposits, particularly in clay and sand, wherein however few land plants will be found, as their...
Tipo: Article / Letter to the editor
Ano: 1940 URL: http://www.repository.naturalis.nl/record/535238
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A classification of the seedling from the 1940 crosses for their resistance to South American leaf disease, Dothidella ulei and black crust, Catacauma huberi. Repositório Alice
BERRY JUNIOR, L. A..
These 1940 crosses are represented by 21 seedlings families. Six Oriental clones were used; they are PB-186, Av. 49, Av. 183, Cl-1, Pilm-D-65, and F-2113. The table below illustrates the classification of the individual seedlings of each family, and the relative resistance to the various families.
Tipo: Outras publicações científicas (ALICE) Palavras-chave: Seringueira; Semente; Classificação; Doença; Dothidella ulei.
Ano: 1940 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1089697
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A cubical photometer for studying the angular distribution of submarine daylight Marine & Ocean Science
Atkins, W.R.G.; Poole, H.H..
Tipo: Article Palavras-chave: GC Oceanography; QC Physics.
Ano: 1940 URL: http://sabella.mba.ac.uk/1160/
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A monograph of the genus Pleiocarpidia K. Sch. (Rubiaceae) Naturalis
Bremekamp, C.E.B..
The name Pleiocarpidia was coined by K. SCHUMANN (ENGLER und PRANTL, Natürliche Pflanzenfamilien, Nachträge I, p. 314, 1897) for a genus described in 1873 by HOOKER f. (BENTHAM et HOOKER, Genera Plantarum II (1), p. 71) as Aulacodiscus: HOOKER’S genus had to be rebaptized, because the name Aulacodiscus had been used already in 1844 by EHRENBERG for a genus belonging to the Diatomeae. A proposal made by O. KUNTZE(POST et KUNTZE, Lexicon, 1904) to change the spelling of the name introduced by SCHUMANN in Pliocarpidia can not be accepted, as there is no rule prescribing the transcription of the Greek diphthong in the manner advocated by the proposer. The plant on which HOOKER’S genus was founded, a small tree not uncommon in the Malay Peninsula, had been...
Tipo: Article / Letter to the editor
Ano: 1940 URL: http://www.repository.naturalis.nl/record/535111
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A New fresh-water Isopod from Curaçao Naturalis
Stork, H.A..
Dr. P. Wagenaar Hummelinck entrusted me with the study of 20 adult specimens of a new species of Cyathura which he collected in fresh-water springs of the limestone-region in Curaçao. These localities are described in the 1st and the 4th paper of this series.
Tipo: Article / Letter to the editor
Ano: 1940 URL: http://www.repository.naturalis.nl/record/506116
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A Preliminary Report of Crop Production Costs from Data Secured in 1939 on the Farm Accounting Route in Winona County, Minnesota AgEcon
Engene, Selmer A.; Pond, George A.; Wetherill, Fred E..
Tipo: Report Palavras-chave: Crop Production/Industries.
Ano: 1940 URL: http://purl.umn.edu/107548
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A Preliminary Report of Data Secured in 1939 on the Farm Accounting Route in Winona County, Minnesota AgEcon
Engene, Selmer A.; Pond, George A.; Wetherill, Fred E..
Tipo: Report Palavras-chave: Farm Management.
Ano: 1940 URL: http://purl.umn.edu/109636
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A Preliminary Report of Livestock Costs and Returns from Data Secured on 1939 on the Farm Accounting Route in Winona County, Minnesota AgEcon
Engene, Selmer A.; Pond, George A.; Wetherill, Fred E..
Tipo: Report Palavras-chave: Livestock Production/Industries.
Ano: 1940 URL: http://purl.umn.edu/109644
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A preliminary study of the ecology of a mud-flat Marine & Ocean Science
Rees, C.B..
Tipo: Article Palavras-chave: GE Environmental Sciences; QH Natural history.
Ano: 1940 URL: http://sabella.mba.ac.uk/1154/
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A revision of Cerithidea (Cerithideopsilla) cingulata (Gmelin) and some related species (Mollusca, Gastropoda) Naturalis
Regteren Altena, C.O. van.
INTRODUCTION Engaged in the study of fossil shells belonging to Thiele's sectio Cerithideopsilla of the genus Cerithidea Swainson and deriving from plio-pleistocene beds in East Java, I failed to find a satisfying account on the recent species of this group. Therefore I resolved to examine as large a material as possible myself in order to settle the value of the different species and varieties that have been described in literature. This investigation led me to the conclusion that even after the inspection of some 1950 specimens I cannot speak the final word, as ecological observations seem necessary to test the taxonomic value of the characters used for distinction. But a preliminary order may be established by the following revision of the material...
Tipo: Article / Letter to the editor Palavras-chave: 42.73.
Ano: 1940 URL: http://www.repository.naturalis.nl/record/318503
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A survey of the mammals, lizards and mollusks Naturalis
NN.
This annotated list of the mammals, lizards and mollusks of the Leeward Group, is based on author’s collection and therefore includes additional mainland-records of the island-species. As a rule a short commentary is given only as a guide to the adopted nomenclature and classification, in case of controversial data which are not yet settled, if important for our knowledge of regional distribution, mentioning vernacular names. Regarding the mammals, all known material-records are included.
Tipo: Article / Letter to the editor
Ano: 1940 URL: http://www.repository.naturalis.nl/record/506090
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An account of Marinogammarus (Schellenberg) gen.nov. [Amphipoda], with a description of a new species. M Pirloti Marine & Ocean Science
Sexton, E.W.; Spooner, G.M..
Tipo: Article Palavras-chave: QL Zoology.
Ano: 1940 URL: http://sabella.mba.ac.uk/1179/
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Annual Report of the Soil Conservation Farm Management Service 1939 AgEcon
Nodland, Truman R.; Pond, George A..
Tipo: Report Palavras-chave: Farm Management.
Ano: 1940 URL: http://purl.umn.edu/109639
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ANNUAL REPORT OF THE SOUTHEASTERN MINNESOTA FARM MANAGEMENT SERVICE 1939 AgEcon
Nodland, Truman R.; Pond, George A..
Tipo: Working or Discussion Paper Palavras-chave: Farm Management.
Ano: 1940 URL: http://purl.umn.edu/13104
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Bibliographical Note Naturalis
Lam, H.J..
Dr. C. A. BACKER and Dr. O. POSTHUMUS, Varenflora voor Java. Overzicht deiop Java voorkomende varens en varenachtigen, hare verspreiding, oekologie en toepassingen. Uitgave van (Fern flora for Java. Conspectus of the ferns and fern allies occurring in Java, their distribution, ecology and use. Issued by) ’s Lands Plantentuin, Buitenzorg, June 1939. I—XLVII, 1—370, 1 Plate, 1 map and 81 text figures. — ƒ 7.50. The users both at home and abroad of Dr. BACKER’s florae have always regretted that, however carefully these books have been prepared, most of them were imperfect in one way or another. They were either restricted to certain vegetations (weedflorae for tea and sugar-cane) or did not cover all groups of vascular plants; the ”Flora van Batavia“ (1907),...
Tipo: Article / Letter to the editor
Ano: 1940 URL: http://www.repository.naturalis.nl/record/526255
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Catalogue of the Solariidae in the Rijksmuseum van Natuurlijke Historie : I. Solarium s.s. Naturalis
Bayer, Ch..
I propose in this part of my catalogue of the Solariidae to deal only with the genus Solarium s.s. and to reserve the remaining genera of this family for the next publication. For the division of the Solariidae in genera I followed Thiele's Handbuch der systematischen Weichtierkunde, also as far as concerns the names. Not only did I mention those species of which we possess specimens in the Leiden Museum, but, like in the former catalogues, I have included also, as far as possible, those species of which no material is present in our collections. The list is composed on the same lines as my previous ones. Of all species of which we possess material a list is given of the specimens, stating: 1) the letter which indicates specimens from the same locality and...
Tipo: Article / Letter to the editor Palavras-chave: 42.81.
Ano: 1940 URL: http://www.repository.naturalis.nl/record/319110
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Change in inheritance in echinoid hybrids Marine & Ocean Science
Horstadius, S..
Tipo: Article Palavras-chave: QH426 Genetics.
Ano: 1940 URL: http://sabella.mba.ac.uk/1150/
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Critical remarks on the Suriname species of the genus Securidaca (Polygalaceae) Naturalis
Oort, A.J.P..
Whilst studying the material of the genus Securidaca for the “Flora of Suriname”, I found it in most cases extremely difficult or even impossible to identify the species. The original descriptions are, as a rule, very short, and they have been based for a good deal on incomplete material: mature fruits, for instance, are often missing. Hence it is not surprising that on quite a number of species the opinions of taxonomists disagree. Accordingly on the one hand we may find in the various collections the most different species lumped together under the same name, while on the other hand one and the same species may appear under several names. A study of the type specimens therefore, was obviously very desirable. I am indebted to the “VAN EEDEN FONDS” for...
Tipo: Article / Letter to the editor
Ano: 1940 URL: http://www.repository.naturalis.nl/record/534803
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Description of the Localities Naturalis
Wagenaar Hummelinck, P..
A few localities in which collecting has been done in 1930 (cf. Zool. Jb. Syst. 64, 1933) are included without special numbering. A capital-letter after the station-number indicates a different habitat or a comparable habitat in another locality; an ordinary-letter indicates that the same habitat has already been studied before.
Tipo: Article / Letter to the editor
Ano: 1940 URL: http://www.repository.naturalis.nl/record/506241
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Fluctuations in oyster production in the Fal estuary Marine & Ocean Science
Orton, J.H..
Tipo: Article Palavras-chave: SH Aquaculture. Fisheries. Angling.
Ano: 1940 URL: http://sabella.mba.ac.uk/1162/
Registros recuperados: 77
Primeira ... 1234 ... Última
 

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