
REVIEWS. 41 
ging bees in the section bee-hive. embracing also improved methods of 
artificial swarming, whereby the business of bee keeping is rendered 
subject, we should judge it to be for the interest of every bee keeper to 
own this little manual, ^ to learn the merits of the section bee-hive de- 
scribed and figured i 
THE EXTINCT FLORA or NORTH AMERICA.* — This pamphlet is the cli- 
max of the late controversy between Messrs. Meek and Hayden on the one 
side, and Profs. Marcou and Heer on the other. This controversy made 
us acquainted with the fact that the familiar forms of the poplar, oak, 
sassafras, willow, etc., lived in the Cretaceous period; and in the present 
pamphlet the author, who was also one of the first to assert this truth, re- 
views the main points of the evidence, and brings forward a numerous list 
continent. **Possibly these genera may hereafter be isse in the plant- 
S of Kansas, Nebraska, and New Mexico, but as yet we have no inti- 
mation of their existence, and there is nothing now wn in the Creta- 
ceous flora of that region which gives it a tropical or even sub-tropical 
character." 
*Tt will be remembered that this vegetation grew upon a broad continental surface, of 
those c 
the isothermal lines should be cu 
well happen, arenes: p we shall find the palms and cinnamons restricted to tbe w 
margin of the Cretaceous continent. It will be seen by ma notes now: given of the Tertiary 
pci of our continent, tha, at a later date, p 
eous plants are — t cinnamons l to b tirely psam 
a the Tertiary flora M we central part of the continent, w ile on the west coast bo 
and cinnamons lived during the gn rel period as far north the so line. wa have 
therefore negative ew vidence from he facts, though it may be reversed at ; day far- 
ther observations, that tl Y keds was 
somewhat warmer than at the beginning of the Cretaceous period, and that during both the 
same relative differences of climate prevailed between the central and western portions that 
day.” 



iyd WORMS IN THE BRAIN OF A Brgp.f— One of the most ob- 
Scure subjects in zoólogy is the history and development of animal para- 
pes and especially those which take up their abode in the brain of differ- 
nt animals. Prof. Wyman has detected a species of “round worm” in the 
brain of seventeen out of nineteen specimens of the Anhinga (Snake-bird 

Um EO vi tps 
k he Cretaceous and a ae Strata. By Prof. sip goonies of 
Columbia College, New rig 8vo, pp. 76. 
fOn a Thread-worm —€— the Brain of the Snake-bird.” By Jeffries Wyman, M. D. 
] "M DEN, "the Boston Society of Natural History, October 7, 1 1868). Syo, 
ENAH diim i’ 

pp. 7. 
AMER. NATURALIST, VOL. Im. 6 
