620 
NATURE 
[AUGUST 15, 1912 
and A. Astruc: Some quantitative determinations of 
manganese in plants. All the plants examined were 
found to contain manganese in small amounts.—C. 
Gerber and P. Flourens; The ferment in the latex of 
Calotropis procera. This proteolytic ferment re- 
sembles that obtained from belladonna and the dias- 
tase from decapod Crustacea.—H. Jumelle and H. 
Perrier de la Bathe. A new genus of palm in Mada- 
gascar.—A. Guilliermond; The mode of formation of 
the pigment in the root of the carrot—Mme. and M. 
Victor Henri: The action of ultra-violet rays upon the 
organism.—Lucien Vallery: Study of the coagulation 
of albumen by heat and its precipitation by potassium 
iodomercurate. An attempt to base a quantitative 
method for the determination of albumen in serum 
and urine upon the precipitate formed with the double 
iodide of mercury and potassium. 
New SoutH WALES. 
Linnean Society, June 26.—Mr. W. S. Dun in the 
chair.—Dr. S. J. Johnston: Some trematodes from 
Australian frogs. Sixteen species of frogs were ex- 
amined for trematodes, in numbers ranging from a 
few in the case of rare species to hundreds in the case 
of common frogs. Ten species of these frogs yielded 
trematodes, of which fifteen species are described as | 
new. These were examined alive, mounted in normal | 
saline solution, stained and mounted as whole mounts, 
and by means of sections. 
Polystomum bulliense, from 
phyllochroa; (2) Diplodiscus megalochrus, 
rectum of H. aurea and Limnodynastes peronii; (3) 
Diplodiscus microchus, from the rectum of H. ewingii 
and L. 
gen. nov., sp. n., from the duodenum of H. aurea 
and L. peronii; (5) Dolichosaccus ischyrus, from the 
intestine of H. caerula and L. dorsalis; (6) Dolicho- 
saccus diamesus, from the stomach of H. freycineti; 
(;) Brachysaccus anartius, gen. nov., sp. n., from the 
intestine and rectum of H. aurea and L. peronii; (8) 
B. symmetrus, from the rectum of H. caerula; (9) 
Pneumonoeces australis, from the lungs of H. aurea 
the bladder of Hyla 
The new species are :—(r) | 
from the | 
tasmaniensis; (4) Dolichosaccus trypherus, | 
and L. peronii; (10) Gorgodera australiensis, from the | 
bladder of H. aurea and L. peronii; (11) Mesocoelium 
mesembrinus, from the duodenum of H. coerulea; (12) 
M. oligoon, from the intestine of H. citropus; (13) 
M. megaloon, from the duodenum of H. ewingii; (14) 
Pleurogenes freycineti, from the duodenum of H. 
freycineti; (15) Pleurogenes solus, from the intestine 
of H. aurea.—Dr. V. F. Brotherus and Rev. W. W. 
Watts: The mosses of the Yarrangobilly Caves Dis- | 
trict, N.S.W. Ten new species are described; and, of 
the other species enumerated, many are new to New 
South Wales. The principal feature of the collection 
is the evidence it supplies of affinity to the Tasmanian 
flora, and to that of the Australian Alps.—Rev. W. W. 
Watts : The sphagna of Australia and Tasmania. 
Care Town. 
Royal Society of South Africa, May 15.—Mr. L. 
Péringuey, president, in the chair.—T. Stewart: The 
rainfall on Table Mountain for thirty years.—Prof. A. 
Young : Tidal phenomena in wells near Cradock. 
BOOKS RECEIVED. 
An Essay on Hasheesh, including Observations and 
Experiments. By Robinson. Pp. 83. (New 
York : ‘‘ Medical Review of Reviews.”) 50 cents. 
Das Klima. By Dr. E. Alt. Pp. 136. (Leipzig: 
P. Reclam, jun.) 1.50 marks. 
2233, VOL. 89| 
| 
‘Wallis. 
A First Book of General Geography. By B. C. 
Pp. vilit151. (London: Macmillan and 
€o., Ltd.) 1s. 6d. 
Our Cavalry. By Major-General M. F. Riming- 
ton. Pp. xiit+224. (London: Macmillan and Co., 
Ltd.) 5s. net. 
The Standard of Value. By Sir D. Barbour Pp. 
xvi+242. (London: Macmillan and Co., Ltd.) 6s. 
net. 
Der energetische Imperativ. By W. Ostwald. 
Erste Reihe. Pp. iv+544. (Leipzig: Alkademische 
Verlagsgesellschaft m.b.H.) 9.60 marks. 
The Evolution of the Vertebrates and their Kin. 
By Prof. W. Patten. Pp. xxi+486. (London: J. 
and A. Churchill.) 21s. net. 
Intermediate Physics. By Prof. W. Watson. 
xv+564. (London: Longmans and Co.) 6s. net. 
Physiography for High Schools. By A. L. Arey, 
F. L. Bryant, W. W. Clendenin, and W. T. Morrey. 
Pp. vit+449. (Boston, New York, and- Chicago: 
D. C. Heath and Co.; London: G. G. Harrap and 
Co.) 4s. 6d. 
Pp. 
CONTENTS. 
PAGE 
Gancereroblems. By/C) ExsVWWiees) eet. iene . 601 
School Mathematics Be gure, 0G Molo ton) (0) - 
Theoreticaland Applied Physics .:..... c, 603 
oodmandy Hy Piene cs iret mem lile 5 604 
Ournsookshelf: ... 2.) .g- asa et he Slows Kees 
Letters to the Editor :— 
The Effects of Friction in a Vacuum on Thorium 
Oxide. (W7th Diagram.)—Richard Howlett . 606 
Aged Sea Anemones.—Dr. N. Annandale . 607 
On the Nature of Stromatoporoids.—R, Kirkpatrick 607 
The Earthquake in Turkey on August 9.—Rev. W. 
Sidgreaves, S.J. Be . Woe eeT Ns, GISI7 
A Flower Sanctuary.—Frank H. Perrycoste . . . 607 
Striated Flints from the Chalky Boulder Clay.—J. 
Reid Moir : Boo Ae te Eo BOY 
On the Sign of the Newtonian Potential.--H, Piaggio 608 
A Point in Geological Nomenclature.—Rev. Dr. A. 
Invangys:. .) 2! Gok Rees et meee 608 
A Reversible Photochemical Reaction.—M. Rindl . 608 
| Nature and Man in Australia. (J//ustvated.) By Dr. 
A. C. Haddon, F.R.S. TOR ew tS epee 
| The Second International Congress of Entomology 610 
Artificial Daylight a Be. 2.5)5. Se 
- The Dundee Meeting of the British Association. . 612 
Notes eer MIA So ot ctenieiie oy or.o oo 613 
Our Astronomical Column ;— 
Photographic Observations of Comet 1911c (Brooks) 616 
Observations.of Jupiter | aueueniieen is) ou) nemeemCy7 
A New Supplement to the Astronomesche Nachrichten 617 
MhesViariation of Latitudes semper ve) i nnen ele 
‘The'@rbits of Comets ‘9s 5 ages sete ee ee] 
The Mineral Resources and Developments in the 
United States. By J. W. G. 617 
The Nutrition of Farm Animals. ........ . 618 
Recent Weather Beis ol be-O (Quen. co O° 618 
Advance of the South-west Monsoon of 1912 over © 
indiaye Per) ors oc Cena 6 oo (ERD) 
Prehistoric Time Measurement in Britain, (///us- 
trated.) eer se | HORA (ov) ce PE EOL 
Sir William Herschel. By Sir George H. Darwin, 
Ki Cisse Rs. . MN.) 3. Aa toch rg OAD 
Budgets of Certain Universities and University 
Colleges ae Pees Ch 5), SOMA aS «5 023) 
University and Educational Intelligence ..... 624 
Societiesjand Academies) = cepemcm cli ciel sete unelee 625 
BookayReceived . . .: . 8 eaemeeeecmn sige 626 
