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| Registros recuperados: 119 | |
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| Boeke, J.E.. |
| An attempt has been made to subdivide a very polymorphous plant species by means of a quantitative statistical method. This method has been based upon the following working hypothesis: 1° as some morphological characters of the material, concerning e. g. the shape of the leaves, the length of the pedicels etc., show an extremely great variation, each of these characters in every specimen at hand may be stated to be in one of three (one intermediate and two extreme) conditions; 2° if a character happens to be in an intermediate condition in a relatively great number of specimens the difference between the extreme conditions of that character may be considered insignificant from a taxonomical point of view; 3° the fewer characters of two or more specimens... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526246 |
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| Beaufort, L.F. de. |
| It needs an explanation why among the botanical papers published in this volume to honour Mrs. Weber—van Bosse on her 90th birthday a zoological contribution has been inserted. Those who have read the curriculum vitae of this wellknown botanist in the foregoing pages of this volume will not wonder, for they know that she has been keenly interested for more than half a century in the zoological work of her late husband. And so among the chorus of botanists the voice of a zoologist could hardly be missed. For many years I have enjoyed the friendship of both, and I am grateful for this opportunity to show Mrs. Weber my affection and my admiration. When contemplating an adequate theme for this paper it occurred to me that in some way or other it had to dwell... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526387 |
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| Westerdijk, Johanna. |
| In Eerbeek, in einem der schön gelegenen Dörfer der Provinz Gelderland, steht ein altes Schloss, von der Verkehrsstrasse weit entfernt, und am Bach entlang zu erreichen. Es ist das sogenannte ”Huis Eerbeek“, das Haus der Frau Dr. Weber, die Herrin im wahren Sinne des Wortes. Da können wir heute der neunzigjährigen begegnen, beim Heruntersteigen der steinernen Treppe, oder auch am Teiche, bei den Karpfen und Enten; nicht selten auch trifft man sie ihre schönen Buchenalleen musternd, durch die sie mit raschen Schritten sich fortbewegt. Täglich nach dem Mittagsmahl geht sie spazieren, manchmal um mit dem Gärtner und mit ihren Bauern etwas zu besprechen. Und was gibt es in der heutigen Zeit nicht alles auf einem Gut zu tun, das Gut, das sie mit ihrem Gatten... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526389 |
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| Brongersma, L.D.. |
| Lygosoma (Sphenomorphus) florense barbouri Dunn (Pl. VI fig. 1) Sphenomorphus florense barbouri Dunn, Amer. Mus. Nov., no. 288, 1927, p. 5, and Dunn, in: Burden, Dragon Lizards of Komodo, 1927, p. 203. 1 ♂, Noil Toko, Timor, 1937, leg. P. F. van West, Mus. Leiden, reg. no. 7033. 5 ♂ ♂, 6 ♀ ♀, Timor, leg. Müller & Macklot, Mus. Leiden, reg. no. 2535. 3 ♂ ♂, 7 ♀♀,2??, Samao, leg. Müller & Macklot, Mus. Leiden, reg. no. 2534. These specimens are provisionally referred to the subspecies barbouri, described by Dunn from Wetar .Id. The dark colour of the throat apparently is a character dependent on age; with four exceptions all specimens of a head and body length above 51 mm have black throats or at least some black spots on the throat. Of the four... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.82. |
| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/319429 |
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| Lam, H.J.. |
| Lorsque, il y a une année à peu près, ma collaboratrice Mlle Joséphine Koster vint me trouver en suggérant l’idée d’éditer un volume dédié au jubilé de votre quatre-vingt-dixième anniversaire, j’acceptai sans hésitation. Cette idée m’était en effet d’autant plus sympathique que j’avais cherché depuis longtemps une occasion pour vous exprimer en public notre admiration tant pour votre personne que pour votre oeuvre. Si nous ne nous étions pas trouvés dans un temps où les contacts internationaux sont interrompus, si précieux et si indispensables pour nous autres, travailleurs scientifiques, il aurait été certainement possible d’organiser une collaboration de plusieurs pays d’outre mer. Car nous savons que vos nombreux amis auraient été heureux de pouvoir... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526376 |
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| Zonneveld, J.I.S.. |
| In this paper we described the molar teeth of E. primigenius found in our country and stored in the Rijksmuseum van Geologie en Mineralogie at Leyden. Special attention is paid to the individual age of the animals at the moment when the grinders were rendered inoparative. As a rule this must have taken place at the moment of the animals dying. In fig. 3 is shown that proportionately the greater number of animals died at the age of 30—60. There are sound reasons to suppose that most of the animals died in the period of life between the 30th and the 45th year. This seem to point to unfavourable life conditions during the time that the woolly mammoth dwelled in the Netherlands. (That time lies between the Mindel-Riss interglacial period and the “Late glacial... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/505658 |
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| Hamel, Gontran. |
| Les Chlorophycées du golfe de Gascogne sont encore peu connues. Elles n’ont fait l’objet que d’une courte énumération de C. Sauvageau dans son travail ”sur les Algues marines du golfe de Gascogne“. J’ai repris cette étude au cours d’un séjour à Saint-Jean-de-Luz et à Biarritz, pendant le printemps de 1940. J’ai récolté les espèces suivantes: 1. Prasiola stipitata Suhr — Se rencontre dans le port de Saint-Jean-de-Luz au niveau de l’ E. marginata. Il est de petite taille, ne dépassant guère 1 cm de hauteur. Il se présente parfois sous la forme ordinaire, élargie en lame au-dessus d’un stipe uniforme; mais, plus souvent, il forme une simple languette, étroite et contournée, à aspect d’ Entéromorphe et rappelle alors le Prasiola calophylla. |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526296 |
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| Escher, B.G.. |
| Crystals of the notched or grooved type are known from some minerals which crystallise in the cubic system. From diamond grooved octahedrons are known, whose grooves remind us of octahedral faces, or the faces of triakis octahedra or hexakis ostahedra. From haüynite too grooved octahedrons are pictured, whose grooves are bordered by octahedral faces. Grooved analcite is known in icositetrahedrons, the grooves are bordered by faces of the same icositetrahedron. |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/505749 |
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| Cosijn, A.J.. |
| In the following pages data will be given about the size of the megalospheric embryonic apparatus, and of the size of the shell, of some Foraminifera. By comparing these data for a certain species from different samples, the relative ages of which are known, it will be possible, to get an insight into the alterations of the measured characters in geological times. For that purpose samples from geological sections, or otherwise well defined geological formations, were used. A description of each of these sections will be given, in order to discuss the reliability of the determinations of the relative ages of the samples. I may point out here, that as the layers containing the foraminiferal shells have a certain thickness, and as the sampling has been done... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/505835 |
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| Swart, J.J.. |
| My revision of the Burseraceae in Pulle’s Flora of Suriname is extended here to a monographic treatment of those Burseraceous genera of which representatives occur in Suriname. Engler’s monograph of this family dates from nearly sixty years ago, and since that time many new species have been published. These additions and the large number of minor and major problems which presented themselves, doubtless justify the publication of this study. I am bound to admit however that not all problems could be solved. The present paper is divided into a General Part and a Taxonomic Part. The critical remarks concerning the whole family and its tribes are dealt with in the General Part, and those referring to the separate genera and species are to be found in the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/535202 |
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| Engel, H.. |
| When Clark (1921) cleared the genus Linckia from superfluous synonyms, he could give no opinion on Linckia rosenbergi Von Martens 1866, p. 63 from Amboina. The unique holotype was in the Berlin Museum and hence not easily accessible to him, the species had not been described again. In his key Clark lays the stress on Von Martens' remark: "Die Porenfelder liegen zwischen den zwei Reihen grösserer Plättchen an der Armseite dicht aneinander, ohne alle Unterbrechung (wie bei Ophidiaster suturalis Müll. & Troschel), aber die Poren behalten dieselbe Anordnung in runde Gruppen (Felder) von circa 10 Poren bei". Clark interpreted this as follows: "Poriferous areas between superomarginals and inferomarginals in an unbroken, continuous series, more or less... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.72. |
| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/318238 |
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| Bakker, D.. |
| Besides the Amathusiidae in the general collection the Rijksmuseum van Natuurlijke Historie at Leiden possesses a considerable number of representatives of the group, in excellently preserved specimens, in the collection of the late Mr. J. H. Jurriaanse. Moreover I could study the Amathusiidae in the collection of the Zoological Laboratory at Groningen, at present in the custody of the Leiden Museum. After I had completed my work at Leiden I had an opportunity to examine the material of the group in the Zoologisch Museum at Amsterdam, which, besides the general collection of the Society "Natura Artis Magistra" consists of the collections of the late Messrs. A. Mos and P. J. van den Bergh. In the following pages the different collections at Leiden are... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/318219 |
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| Henrard, J.Th.. |
| Paspalum montanum HENR. nov. spec. Perennis, caespitosa, stricte erecta, ad 60 cm alta; culmi glabri, plurinodes, nodis adpresse pubescentibus; vaginae arctae vel parum hiantes, hirsutae vel villoso-pubescentes, ligula scariosa, brunnea; laminae lineares, ad 1 cm latae vel inferiores angustiores, ad 20 cm longae, acuminatae, nervo crasso praeditae; inflorescentia terminalis, paniculata, e racemis paucis, in axillis barbatis, 4—5 cm longis formata; rhachis partialis subplana, leviter undulata, spiculae binatae, inaequaliter pedicellatae, altera subsessilis, altera longiter pedicellata, pedicelli glabri, subangulati; spiculae leviter sed distincte obovatae, strigosae, 2 mm longae, ad 1.4 mm latae, apice obtusae, vix vel leviter tantum acutatae, nervis haud... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/534737 |
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| Zaneveld, J.S.. |
| In 1938, Verdam published an account of the then-known Charophyta of the Netherlands in the English language (cf. this journal, vol. 3), and one year later (1939) another in our own language in “Nederlandsch Kruidkundig Archief”. In both papers reference was made to only five Netherlands’ publications on the same subject, the oldest of which is dating from 1846. In studying i.a. the history of the Malaysian Charophyta (Zaneveld, 1940) I found that much more was published on the Charophyta of our Low Countries. As will be seen below, it became evident that the first printed record of a Netherlands’ Charophyte dates as far back as 1636. It seems worth while to publish these notes on the history of the identification of our Charophyta as, moreover, a number... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/525256 |
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| Registros recuperados: 119 | |
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