| 1. |
|
|
| 2. |
|
|
| 3. |
- Chernick, C. L., et al.
(författare)
-
Thermochemistry of metallic alkyls : Part 7. - The heat of formation of mercury diphenyl, and of mercury phenyl chloride
- 1956
-
Ingår i: Transactions of the Faraday Society. - 0014-7672. ; 52, s. 1088-1093
-
Tidskriftsartikel (refereegranskat)abstract
- The heat of reaction of mercury diphenyl with hydrogen chloride in benzene solvent has been measured at 25°C. The heat of reaction of mercury diphenyl with mercuric chloride in methanol solvent has also been measured. From these heats of reaction, the heat of formation of mercury diphenyl has been derived: ΔHf° (Hgφ2, cryst.) = 65.4 ± 2 kcal/mole. Previous data on the heats of reaction of mercury diphenyl with bromine and iodine, and with mercuric bromide and mercuric iodide have been amended, and used to derive, independently, ΔHf° (Hgφ2, cryst.) = 67.2 ± 2.2, and 66.1 ± 3.2 kcal/mole. These values all agree, within their respective limits of error, with the heat of formation obtained by Fairbrother and Skinner from the heat of combustion of mercury diphenyl. The "best" value, ΔHf° (Hgφ2, cryst.) = 66 ± 2.5 kcal/mole, is proposed. The heat of formation of crystalline mercury phenyl chloride is -0.55 ± 2.3 kcal/mole.
|
|
| 4. |
|
|
| 5. |
|
|
| 6. |
- Elofsson, Rolf
(författare)
-
The larvae of Pasiphaea multidentata (Esmark) and Pasiphaea tarda (Kröyer).
- 1961
-
Ingår i: Sarsia. - : Informa UK Limited. - 0036-4827. ; 4, s. 43-53
-
Tidskriftsartikel (refereegranskat)abstract
- Pasiphaeid larvae collected in the Korsfjord, western Norway, were found to split up into two groups. Mainly two characteristics separated the larvae viz. the size of the larvae and the number of telson spines. The group with small larvae (8 to 10 mm) and the larger number of telson spines is referred to Pasiphaea multidentata and that with large larvae (10 to 12 mm) and fewer telson spines to Pasiphaea tarda. Embryos ready to hatch from an ovigerous female of Pasiphaea multidentata were dissected and it is shown that they resemble the small larvae above.
|
|
| 7. |
- Elofsson, Rolf
(författare)
-
The nauplius eye and frontal organs in decapoda (Crustacea)
- 1963
-
Ingår i: Sarsia. - : Informa UK Limited. - 0036-4827. ; 12, s. 1-68
-
Tidskriftsartikel (refereegranskat)abstract
- The present investigation concerns the nauplius eye and frontal organs in decapod Crustaceans. Representatives from all groups of the Decapoda are included. Some of the more important results are abstracted.The nauplius eye in several families within the Eucyphidea is more complicated than generally believed. It consists of a nauplius eye s. s. with three cups and three sensory cells in each and the incorporated dorsal frontal organ, which functions as an eye. The sensory cells are everse.The dorsal frontal organ is thus intimately connected with the nauplius eye s. s. and must not be mixed up with the eye papilla and the sensory pore X organ.The dorsal frontal organ is subjected to a considerable degree of variation. As part of a nauplius eye s, 1. as mentioned above it is an eye. In many species all over the Decapoda the frontal organ is reduced. A line of transformation can be shown from eye appearance through intermediate stages to “globuli” cells situated in the ganglion layer of the brain.The ventral frontal organ is more common than formerly believed and its paired nature is stressed.The author acceds to Hanström's hypothesis (1926) concerning the phytogeny of the frontal organs.
|
|
| 8. |
|
|
| 9. |
|
|
| 10. |
|
|
