巻号一覧
16 巻, 3 号
選択された号の論文の6件中1～6を表示しています
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I. Inadequacy of Acidulated Alcohols with Hydrochloric Acid as SolventY. HASHIMOTO, M. MIGITA1950 年 16 巻 3 号 p. 77-85
発行日: 1950/08/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (547K) -
中村 一雄1950 年 16 巻 3 号 p. 86-90
発行日: 1950/08/25
公開日: 2008/02/29
ジャーナル フリーIn order to find out the shortage of effective element in three different pool's water. We filtered the water in each pool and took 200cc into a flask respectively, and after adding them one or two drops of 1-5% solution of various reagents, cultivated Oosystis for 20-50days in them indoors. The element, which had been added to the remarkably multiplied group of the cultivated plant, is to be regarded as the shortage of effective element; that is as follows.
Shortage of Oike's water was Organic matter and N-Compound same times Fe-Compound and P-Compound.
Shortage of Shinike's water was Organic matter and P-Compound.
Shortage of Asama-ike water was N-Compound and Organic matter.抄録全体を表示PDF形式でダウンロード (314K) -
久保 伊津男1950 年 16 巻 3 号 p. 91-98
発行日: 1950/08/25
公開日: 2008/02/29
ジャーナル フリーAs to the puerulus of Panulirus japonicus (v. SIEBOLD), detailed morphological and some ecological descriptions have been made by the present writer. Wherefore some informations mostly on the puerulus of Panulirus versicola (LAIR.) ?=P. fasciatus, DE HAAN, 1850? will be given in this article.
Nine pueruli and 2 first-young-forms were dealt with. Of these pueruli, 5 obtained from Japan (Izu, Shizuoka Pref. and Misaki, Kanagawa Pref.) in September and October, and the rest from Palau Islands. The fact that the puerulus of P. versicola has been found from Japanese waters is new to science. The body-lengths run from 19.0-22.6mm in the puerulus, from 20.7-21.0mm in the first-young-form (Table 1). The puerulus is greatly characterized by having vestigial exopodite of the third maxilliped, much longer (2.1-2.2 times as long as body-length in P. versicola, about 1.3 times in P. japonicus) antennae with spatulate tip stained with rather deep brown colour (in alcoholic specimens) in distal 6-8 segments (Fig. 3.), and eighth thoracic sternite armed with a large acute spine on ventral side of each lateral edge. The puerulus of P. versicola differs from that of P. japonicus by the following traits besides those given above, viz., the carapace has more elevated median carina, and largely has the spine-f (Fig. 1), and the endopodite of the maxillae is provided with 2 lobes on inner distal margin (Fig. 4, I).
Some descriptions in regard to the puerulus of P. versicola have been given by ORTMANN (1894), CALMAN (1909), and DE MAN (1916). But no one has given description on the signal feature of the antennae.抄録全体を表示PDF形式でダウンロード (614K) -
大島 泰雄1950 年 16 巻 3 号 p. 99-107
発行日: 1950/08/25
公開日: 2008/02/29
ジャーナル フリーAmmodytes personatus, “Ikanago”, is a commercially important fish found abundantly in Ise-Bay and the adjancent waters. In this paper the author dealt with some biological points of the fish, especially the primary ones relating to the fisheries investigation, viz. age and growth, migratory movement, vertebral number and foods.抄録全体を表示PDF形式でダウンロード (548K) -
丹羽 信厚1950 年 16 巻 3 号 p. 108-110
発行日: 1950/08/25
公開日: 2008/02/29
ジャーナル フリーThe present paper is dealt with the life of Viviparus malleatus found in Niwa-gun of the northwestern part of Aichi Prefecture. The relation between the diameter of opercle and the body weight indicates the primary function. In larger specimen, the female is heavier than the male. The specimens with the opercle measuring less than 20mm in diameter are very common. The sex ratio indicates that the female is more numerous than the male among larger specimens, and the male is more abundant among smaller specimens. In general, however, specimens with opercle less than 25mm in diameter are predominantly males. The maximum life year is four years in the male and seven years in the females. In the natural state one to two year old specimens are commonly found in the field and four year ones are distinctly few. The young are born from April to August and found throughout year. The growth of young 20 days after hatching is rather rapid and then gradually becomes slow. When the water temperature is lower than 15°C, the growth may cease. The growth rate during the second year is slower than the first and still so in the third year.抄録全体を表示PDF形式でダウンロード (172K) -
第1報色素吸着に就いて岩狹 與三郎, 向井 逸藏1950 年 16 巻 3 号 p. 111-114
発行日: 1950/08/25
公開日: 2008/02/29
ジャーナル フリーWith the desire to ascertain the chemical composition of the pigment of common rorquals, the writers have at first trade a study of the adhesion of pigment with the following results.
1. As the adhesion drug of the pigment of oil, bentonite was most superior followed by Faller's earth. As it is difficult to extract the pigment of bentonite after its adhesion, it is decided to use Faller's earth in the future as the adhesion drug.
2. It is discovered that it is possible to adhere the pigment of oil almost perfectly, by adding 40% quantity of Faller's earth in the warm oil of 100-105°C. after stirring it for five minutes and leaving it for fifteen minutes in the room temperature, being treated for ten minutes by the centrifugal separator. (5, 000/m)
3. It was further discovered that the adhesion of Faller's earth, even when the acid value and the intensity of colour of whale oil are high, could be decolourized to a certain degree in proportion to the percent amount of Faller's earth added.抄録全体を表示PDF形式でダウンロード (231K)
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